Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
han zhang » hao zhang, yan zhang, zhang zhang
han chang » huang chang, than change, can change
zhong zhi » zhang zhi, hong ghi, zhong tai
yang xi » yang di, yang yi, yang jui
hong yu » wong yue
wang » wing, lang

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 wan) yang yang xi ((han zhang) OR (han chang)) won ((zhong zhi) OR (hong yu)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(wang or wan) yang yang xi ((han zhang) OR (han chang)) won ((zhong zhi) or (hong yu)) ;~".
• Adding a wildcard symbol may retrieve word variants: (wang or wan) yang yang xi ((han zhang) OR (han chang)) won ((zhong zhi) or (hong yu)) ;*.