diff -uNr roundup-1.3.1/roundup/cgi/actions.py roundup-1.3.1.indexer_rdbms/roundup/cgi/actions.py
--- roundup-1.3.1/roundup/cgi/actions.py	2006-08-11 07:40:11.000000000 +0200
+++ roundup-1.3.1.indexer_rdbms/roundup/cgi/actions.py	2008-01-11 15:21:57.919787153 +0100
@@ -966,7 +966,7 @@
         # full-text search
         if request.search_text:
             matches = self.db.indexer.search(
-                re.findall(r'\b\w{2,25}\b', request.search_text), klass)
+                re.findall(r'[\w_%]{2,25}', request.search_text), klass)
         else:
             matches = None
 
diff -uNr roundup-1.3.1/roundup/cgi/templating.py roundup-1.3.1.indexer_rdbms/roundup/cgi/templating.py
--- roundup-1.3.1/roundup/cgi/templating.py	2006-11-09 06:53:40.000000000 +0100
+++ roundup-1.3.1.indexer_rdbms/roundup/cgi/templating.py	2008-01-11 15:34:58.602355808 +0100
@@ -2454,7 +2454,7 @@
         if self.search_text:
             matches = self.client.db.indexer.search(
                 [w.upper().encode("utf-8", "replace") for w in re.findall(
-                    r'(?u)\b\w{2,25}\b',
+                    r'(?u)[\w_%]{2,25}',
                     unicode(self.search_text, "utf-8", "replace")
                 )], klass)
         else:
diff -uNr roundup-1.3.1/roundup/backends/indexer_rdbms.py roundup-1.3.1.indexer_rdbms/roundup/ckends/indexer_rdbms.py
--- roundup-1.3.1/roundup/backends/indexer_rdbms.py	2006-10-04 02:35:16.000000000 +0200
+++ roundup-1.3.1.indexer_rdbms/roundup/backends/indexer_rdbms.py	2008-01-15 20:39:52.365118481 +0100
@@ -86,7 +86,11 @@
 
         if self.db.implements_intersect:
             # simple AND search
-            sql = 'select distinct(_textid) from __words where _word=%s'%self.db.arg
+            if word.find('_') == -1 and word.find('%') == -1:
+                sql = 'select distinct(_textid) from __words where _word=%s'%self.db.arg
+            else: 
+                sql = 'select distinct(_textid) from __words where _word LIKE %s'%self.db.arg
+     
             sql = '\nINTERSECT\n'.join([sql]*len(l))
             self.db.cursor.execute(sql, tuple(l))
             r = self.db.cursor.fetchall()