Perhaps you should try some spelling variations:
wei reformen » der reformen, den reformen, iii reformen
reformen jan » reformen von, reformen a, reformen nach
yan zhang » yuan chang, bin zhang, han chang
zhang wei » zhen wei
jan david » juan david, sahn david, alan david
wan yan » wang yan, nan yan, wai yan
hong » long
kong » long, pong, ong

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wan yan zhang wei reformen jan david ((dang hai) or (hong kong)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan yan zhang wei reformen jan david ((dang hai) OR (hong kong)) ;*.