Perhaps you should try some spelling variations:
zen » zeng
zend » zengd, tend, send, lend
zehen » sehen
sehend » stehend, sehende, sehen
zehnd » zehend, zahnd, zehnt
gehorenden » gehobenen

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: (zen OR ((zehen OR gehen) OR (((sehend OR ((zehnd OR zehn) OR zend)) OR end) OR gehorenden))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(zen or ((zehen or gehen) or (((sehend or ((zehnd OR zehn) or zend)) or end) or gehorenden)))".
• Adding a wildcard symbol may retrieve word variants: (zen or ((zehen or gehen) or (((sehend or ((zehnd OR zehn) or zend)) or end) or gehorenden)))*.