diff --git a/src/collective/dms/thesaurus/browser/thesaurusview.py b/src/collective/dms/thesaurus/browser/thesaurusview.py
index 269d1ca..5e1d94a 100644
--- a/src/collective/dms/thesaurus/browser/thesaurusview.py
+++ b/src/collective/dms/thesaurus/browser/thesaurusview.py
@@ -1,4 +1,5 @@
 import json
+import re
 
 from zope.interface import implementer
 from zope.interface import implements
@@ -127,6 +128,7 @@ class ListKeywordsView(BrowserView):
         intermediate = []
         other = []
         q = query_string.lower()
+        regex = re.compile(r"[\s'()]")
         for normalized, title, id in self.getItems():
             for term in query_terms:
                 if not term in title.lower():
@@ -136,7 +138,7 @@ class ListKeywordsView(BrowserView):
                     if title.lower().startswith(q):
                         startswith.append((normalized, item))
                         continue
-                    for word in title.split():
+                    for word in regex.split(title):
                         if word.lower().startswith(q):
                             intermediate.append((normalized, item))
                             break