Perhaps you should try some spelling variations:
kur » kurz, kurt, kurs
kurzt » kurzzt, kurtzt, kurszt, kurz, kurze, kurst
kuret » kurzet, kurtet, kurset, kurt, muret, furet
kuren » kurzen, kurten, kursen, karen, turen, buren

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 kunst) OR (kurzt OR (kuret OR kuren))) OR kaursse).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((kur or kunst) or (kurzt or (kuret OR kuren))) or kaursse)".
• Adding a wildcard symbol may retrieve word variants: (((kur or kunst) or (kurzt or (kuret OR kuren))) or kaursse)*.