Perhaps you should try some spelling variations:
zen » zehn, zeng
zend » zehnd, zengd, tend, send, lend
zehen » sehen, zehn
sehend » stehend, sehende, sehen
zehnd » zehend, zehn, zahnd
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 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 zend)) or end) or gehorenden)))".
• Adding a wildcard symbol may retrieve word variants: (zen or ((zehen or gehen) or (((sehend or (zehnd OR zend)) or end) or gehorenden)))*.