diff --git a/application/config/searchfunctions.php b/application/config/searchfunctions.php
index 276652997..ddf7692d5 100644
--- a/application/config/searchfunctions.php
+++ b/application/config/searchfunctions.php
@@ -29,7 +29,7 @@ $config['similar'] = [
 
 $config['vector'] = [
 	'priority' => 1,
-	'rank' => "ts_rank({field}, to_tsquery('simple', {word}))",
-	'compare' => "to_tsquery('simple', {word}) @@ {field}"
+	'rank' => "ts_rank({field}, plainto_tsquery('simple', {word}))",
+	'compare' => "plainto_tsquery('simple', {word}) @@ {field}"
 ];
 
diff --git a/application/config/searchstv.php b/application/config/searchstv.php
index 96c118ac8..d507f7250 100644
--- a/application/config/searchstv.php
+++ b/application/config/searchstv.php
@@ -7,5 +7,43 @@ $CI =& get_instance();
 
 
 $config['student'] = $CI->config->item('student', 'search');
+$config['student']['searchfields']['pkz'] = [
+	'alias' => ['personenkennzeichen', 'personalid'],
+	'comparison' => 'equals',
+	'field' => 'matrikelnr'
+];
+$config['student']['searchfields']['matrnr'] = [
+	'alias' => ['matrikelnr', 'matrikelnummer', 'matrno', 'matriculationno', 'matriculationnumber', 'studno', 'studentno', 'studentnumber'],
+	'comparison' => 'equals',
+	'field' => 'matr_nr',
+	'join' => [
+		[
+			'table' => "public.tbl_prestudent",
+			'using' => "prestudent_id"
+		],
+		[
+			'table' => "public.tbl_person",
+			'using' => "person_id"
+		]
+	]
+];
 
 $config['prestudent'] = $CI->config->item('prestudent', 'search');
+$config['prestudent']['searchfields']['pkz'] = [
+	'alias' => ['personenkennzeichen', 'personalid'],
+	'comparison' => 'equals',
+	'field' => 'matrikelnr',
+	'join' => [
+		'table' => "public.tbl_student",
+		'using' => "prestudent_id"
+	]
+];
+$config['prestudent']['searchfields']['matrnr'] = [
+	'alias' => ['matrikelnr', 'matrikelnummer', 'matrno', 'matriculationno', 'matriculationnumber', 'studno', 'studentno', 'studentnumber'],
+	'comparison' => 'equals',
+	'field' => 'matr_nr',
+	'join' => [
+		'table' => "public.tbl_person",
+		'using' => "person_id"
+	]
+];