Index: wp-includes/js/tinymce/plugins/wplink/js/wplink.dev.js
===================================================================
--- wp-includes/js/tinymce/plugins/wplink/js/wplink.dev.js	(revision 16467)
+++ wp-includes/js/tinymce/plugins/wplink/js/wplink.dev.js	(working copy)
@@ -149,7 +149,9 @@
 			setTimeout(function() {
 				var newTop = t.scrollTop(),
 					newBottom = newTop + t.height(),
-					waiting = t.find('.river-waiting');
+					waiting = t.find('.river-waiting'),
+					s = inputs.search.val(),
+					args = {};
 
 				if ( bottom != newBottom || newBottom != ul.height() || river.active || river.allLoaded )
 					return;
@@ -157,8 +159,10 @@
 				river.active = true;
 				waiting.show();
 				t.scrollTop( newTop + waiting.outerHeight() );
-
-				wpLink.linkAJAX( t, { page : river.page }, function(r) {
+				args = { page : river.page };
+				if ( s )
+					args.title = s;
+				wpLink.linkAJAX( t, args, function(r) {
 					river.page++;
 					river.active = false;
 					river.allLoaded = !r;