Index: temp/trunk/html/admin/products/index.php
===================================================================
--- temp/trunk/html/admin/products/index.php	(revision 2149)
+++ temp/trunk/html/admin/products/index.php	(revision 2150)
@@ -136,5 +136,8 @@
 					break;
 				case 'search_product_class_name': //µ¬³Ê̾¾Î
-					$where .= " AND  product_id IN (SELECT product_id FROM dtb_products_class WHERE classcategory_id1 IN (SELECT classcategory_id FROM dtb_classcategory WHERE class_id IN (SELECT class_id FROM dtb_class WHERE name LIKE ?))) ";
+					$where_in = " (SELECT classcategory_id FROM dtb_classcategory WHERE class_id IN (SELECT class_id FROM dtb_class WHERE name LIKE '?')) ";
+					$where .= " AND product_id IN (SELECT product_id FROM dtb_products_class WHERE classcategory_id1 IN " . $where_in;
+					$where .= " OR classcategory_id2 IN" . $where_in;
+					$arrval[] = "%$val%";
 					$arrval[] = "%$val%";
 					break;