diff --git a/system/docs/CHANGELOG.md b/system/docs/CHANGELOG.md
index cd2e4b13e8..0a7ca89f43 100644
--- a/system/docs/CHANGELOG.md
+++ b/system/docs/CHANGELOG.md
@@ -4,6 +4,9 @@ Contao Open Source CMS changelog
 Version 3.4.0-beta1 (2014-10-XX)
 --------------------------------
 
+### Improved
+Consider the values of referenced fields in the back end search (see #4376).
+
 ### New
 Add an option to export style sheets (see #7049).
 
diff --git a/system/modules/calendar/dca/tl_calendar_events.php b/system/modules/calendar/dca/tl_calendar_events.php
index 5f33e2e9e5..7dec6a8b84 100644
--- a/system/modules/calendar/dca/tl_calendar_events.php
+++ b/system/modules/calendar/dca/tl_calendar_events.php
@@ -195,9 +195,10 @@
 			'label'                   => &$GLOBALS['TL_LANG']['tl_calendar_events']['author'],
 			'default'                 => BackendUser::getInstance()->id,
 			'exclude'                 => true,
+			'search'                  => true,
 			'filter'                  => true,
 			'sorting'                 => true,
-			'flag'                    => 1,
+			'flag'                    => 11,
 			'inputType'               => 'select',
 			'foreignKey'              => 'tl_user.name',
 			'eval'                    => array('doNotCopy'=>true, 'chosen'=>true, 'mandatory'=>true, 'includeBlankOption'=>true, 'tl_class'=>'w50'),
diff --git a/system/modules/core/dca/tl_article.php b/system/modules/core/dca/tl_article.php
index e319434d9b..8dd8687a33 100644
--- a/system/modules/core/dca/tl_article.php
+++ b/system/modules/core/dca/tl_article.php
@@ -208,6 +208,7 @@
 			'label'                   => &$GLOBALS['TL_LANG']['tl_article']['author'],
 			'default'                 => BackendUser::getInstance()->id,
 			'exclude'                 => true,
+			'search'                  => true,
 			'inputType'               => 'select',
 			'foreignKey'              => 'tl_user.name',
 			'eval'                    => array('doNotCopy'=>true, 'mandatory'=>true, 'chosen'=>true, 'includeBlankOption'=>true, 'tl_class'=>'w50'),
diff --git a/system/modules/core/dca/tl_page.php b/system/modules/core/dca/tl_page.php
index 3ea38a8881..de6522d1d8 100644
--- a/system/modules/core/dca/tl_page.php
+++ b/system/modules/core/dca/tl_page.php
@@ -512,6 +512,7 @@
 			'label'                   => &$GLOBALS['TL_LANG']['tl_page']['cuser'],
 			'default'                 => intval(Config::get('defaultUser')),
 			'exclude'                 => true,
+			'search'                  => true,
 			'inputType'               => 'select',
 			'foreignKey'              => 'tl_user.username',
 			'eval'                    => array('mandatory'=>true, 'chosen'=>true, 'includeBlankOption'=>true, 'tl_class'=>'w50'),
@@ -523,6 +524,7 @@
 			'label'                   => &$GLOBALS['TL_LANG']['tl_page']['cgroup'],
 			'default'                 => intval(Config::get('defaultGroup')),
 			'exclude'                 => true,
+			'search'                  => true,
 			'inputType'               => 'select',
 			'foreignKey'              => 'tl_user_group.name',
 			'eval'                    => array('mandatory'=>true, 'chosen'=>true, 'includeBlankOption'=>true, 'tl_class'=>'w50'),
diff --git a/system/modules/core/drivers/DC_Table.php b/system/modules/core/drivers/DC_Table.php
index 10b4578b9c..3b5792dfd9 100644
--- a/system/modules/core/drivers/DC_Table.php
+++ b/system/modules/core/drivers/DC_Table.php
@@ -3263,8 +3263,27 @@ protected function treeView()
 			}
 			else
 			{
-				$objRoot = $this->Database->prepare("SELECT $for FROM {$this->strTable} WHERE CAST(".$session['search'][$this->strTable]['field']." AS CHAR) REGEXP ? GROUP BY $for")
-										  ->execute($session['search'][$this->strTable]['value']);
+				$strPattern = "CAST(%s AS CHAR) REGEXP ?";
+
+				if (substr(\Config::get('dbCollation'), -3) == '_ci')
+				{
+					$strPattern = "LOWER(CAST(%s AS CHAR)) REGEXP LOWER(?)";
+				}
+
+				$fld = $session['search'][$this->strTable]['field'];
+
+				if (isset($GLOBALS['TL_DCA'][$this->strTable]['fields'][$fld]['foreignKey']))
+				{
+					list($t, $f) = explode('.', $GLOBALS['TL_DCA'][$this->strTable]['fields'][$fld]['foreignKey']);
+
+					$objRoot = $this->Database->prepare("SELECT $for FROM {$this->strTable} WHERE (" . sprintf($strPattern, $fld) . " OR " . sprintf($strPattern, "(SELECT $f FROM $t WHERE $t.id={$this->strTable}.$fld)") . ") GROUP BY $for")
+											  ->execute($session['search'][$this->strTable]['value'], $session['search'][$this->strTable]['value']);
+				}
+				else
+				{
+					$objRoot = $this->Database->prepare("SELECT $for FROM {$this->strTable} WHERE " . sprintf($strPattern, $fld) . " GROUP BY $for")
+											  ->execute($session['search'][$this->strTable]['value']);
+				}
 			}
 
 			if ($objRoot->numRows < 1)
@@ -4807,13 +4826,24 @@ protected function searchMenu()
 		// Set the search value from the session
 		elseif ($session['search'][$this->strTable]['value'] != '')
 		{
+			$strPattern = "CAST(%s AS CHAR) REGEXP ?";
+
 			if (substr(\Config::get('dbCollation'), -3) == '_ci')
 			{
-				$this->procedure[] = "LOWER(CAST(".$session['search'][$this->strTable]['field']." AS CHAR)) REGEXP LOWER(?)";
+				$strPattern = "LOWER(CAST(%s AS CHAR)) REGEXP LOWER(?)";
+			}
+
+			$fld = $session['search'][$this->strTable]['field'];
+
+			if (isset($GLOBALS['TL_DCA'][$this->strTable]['fields'][$fld]['foreignKey']))
+			{
+				list($t, $f) = explode('.', $GLOBALS['TL_DCA'][$this->strTable]['fields'][$fld]['foreignKey']);
+				$this->procedure[] = "(" . sprintf($strPattern, $fld) . " OR " . sprintf($strPattern, "(SELECT $f FROM $t WHERE $t.id={$this->strTable}.$fld)") . ")";
+				$this->values[] = $session['search'][$this->strTable]['value'];
 			}
 			else
 			{
-				$this->procedure[] = "CAST(".$session['search'][$this->strTable]['field']." AS CHAR) REGEXP ?";
+				$this->procedure[] = sprintf($strPattern, $fld);
 			}
 
 			$this->values[] = $session['search'][$this->strTable]['value'];
diff --git a/system/modules/faq/dca/tl_faq.php b/system/modules/faq/dca/tl_faq.php
index ff8b7e64f1..8f0d755bd2 100644
--- a/system/modules/faq/dca/tl_faq.php
+++ b/system/modules/faq/dca/tl_faq.php
@@ -175,8 +175,9 @@
 			'default'                 => BackendUser::getInstance()->id,
 			'exclude'                 => true,
 			'search'                  => true,
+			'filter'                  => true,
 			'sorting'                 => true,
-			'flag'                    => 1,
+			'flag'                    => 11,
 			'inputType'               => 'select',
 			'foreignKey'              => 'tl_user.name',
 			'eval'                    => array('doNotCopy'=>true, 'chosen'=>true, 'mandatory'=>true, 'includeBlankOption'=>true, 'tl_class'=>'w50'),
diff --git a/system/modules/news/dca/tl_news.php b/system/modules/news/dca/tl_news.php
index fec57fea65..5f69298322 100644
--- a/system/modules/news/dca/tl_news.php
+++ b/system/modules/news/dca/tl_news.php
@@ -201,6 +201,7 @@
 			'label'                   => &$GLOBALS['TL_LANG']['tl_news']['author'],
 			'default'                 => BackendUser::getInstance()->id,
 			'exclude'                 => true,
+			'search'                  => true,
 			'filter'                  => true,
 			'sorting'                 => true,
 			'flag'                    => 11,