Perhaps you should try some spelling variations:
kurs » kurz
kaur » kaum, kauf, kar
kaursse » kaumsse, kaufsse, karsse
kurt » kurz
kurze » kurz
kurzet » kurzt, kurzest, kurzer, kurzen

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: ((((kurs OR kaur) OR kurt) OR (kurze OR kurzet)) OR kaursse).
• Adding a wildcard symbol may retrieve word variants: ((((kurs or kaur) or kurt) or (kurze or kurzet)) or kaursse)*.