Perhaps you should try some spelling variations:
kur » kurz, kurt, kurs
kurztz » kurzztz, kurtztz, kursztz
kursz » kurzsz, kurtsz, kurssz, kurs, kurtz, kursk
kurse » kurzse, kurtse, kursse, kurze, nurse, curse
kar » karl

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((kur OR kar) OR (kurztz OR (kursz OR kurse))) OR kaumsse).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((kur or kar) or (kurztz or (kursz OR kurse))) or kaumsse)".
• Adding a wildcard symbol may retrieve word variants: (((kur or kar) or (kurztz or (kursz OR kurse))) or kaumsse)*.