Perhaps you should try some spelling variations:
zeng » eng, feng, peng
zehend » gehend, behend, sehend, zehnd
zehen » sehen, zehn
zehnd » zehn, zend, zahnd
gehenden » gehende, angehenden, gehorenden

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: (zeng OR (gehen OR (((zehend OR zehen) OR zehnd) OR gehenden)))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(zeng or (gehen or (((zehend OR zehen) or zehnd) or gehenden)))*".