Perhaps you should try some spelling variations:
kur » kurt, kurs, kaur
kurz » kurtz, kursz, kaurz
kurzt » kurtzt, kurszt, kaurzt, kurze, kurst
kuret » kurtet, kurset, kauret, kurt, kuren, muret
kursz » kurtsz, kurssz, kaursz, kurs, kurse, kurtz

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 kurz) OR bauens) OR ((kurzt OR kuret) OR kursz)) OR kaursse)*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((kur OR kurz) or bauens) or ((kurzt or kuret) or kursz)) or kaursse)*".