Perhaps you should try some spelling variations:
zili reformen » iii reformen, die reformen
reformen von » formen von, reform von, referaten von
wang yang » wang yan, wang liang, wang yanling
yang zili » yang dali, yang li
von david » john david, ben david, jan david
young ghi » young choi, hong ghi, young get
young let » young get, young men, young er

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: (wang OR lang) wang yang zili reformen von david ((young ghi) OR (young let)) ;~.
• Adding a wildcard symbol may retrieve word variants: (wang or lang) wang yang zili reformen von david ((young ghi) or (young let)) ;*.