Perhaps you should try some spelling variations:
kur » kurz, kurt, kaur
kurs » kurzs, kurts, kaurs, kurz, kurt
kuret » kurzet, kurtet, kauret, kurt, kuren, muret
kurttset » kurzttset, kurtttset, kaurttset
kurzzt » kurzzzt, kurtzzt, kaurzzt, kurzzeit
kurzsen » kurzzsen, kurtzsen, kaurzsen

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