Index: branches/5.2.x/core/units/categories/categories_event_handler.php
===================================================================
diff -u -N -r16027 -r16148
--- branches/5.2.x/core/units/categories/categories_event_handler.php	(.../categories_event_handler.php)	(revision 16027)
+++ branches/5.2.x/core/units/categories/categories_event_handler.php	(.../categories_event_handler.php)	(revision 16148)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: categories_event_handler.php 16027 2014-04-29 13:00:46Z alex $
+* @version	$Id: categories_event_handler.php 16148 2015-03-21 12:07:47Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -2661,10 +2661,14 @@
 					$revelance_parts[] = 'IF('.$field.' REGEXP "[[:<:]]('.$keyword.')[[:>:]]", '.$weight.', 0)';
 				}*/
 
+				if ( count($positive_words) > 1 ) {
+					$condition = $field . ' LIKE "%' . implode(' ', $positive_words) . '%"';
+					$revelance_parts[] = 'IF(' . $condition . ', ' . $weight_sum . ', 0)';
+				}
+
 				// search by partial word matches too
-				$revelance_parts[] = 'IF('.$field.' LIKE "%'.implode(' ', $positive_words).'%", '.$weight_sum.', 0)';
-				foreach ($positive_words as $keyword) {
-					$revelance_parts[] = 'IF('.$field.' LIKE "%'.$keyword.'%", '.$weight.', 0)';
+				foreach ( $positive_words as $keyword ) {
+					$revelance_parts[] = 'IF(' . $field . ' LIKE "%' . $keyword . '%", ' . $weight . ', 0)';
 				}
 			}