Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
juan rene » juan meng, juan rana
qian wang » yiqian wang, qian rong, qian yan
zhong zhi » zhang zhi, hong ghi
zhong tai » hong tan, hong hai
yan wang » yuan wang, yan liang, yan zhang
yang ya » yang yao, yang yi, yang ka
ya juan » y juan, san juan, roa juan

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: yang yang ya juan rene ((qian wang) OR (yan wang)) ((zhong zhi) OR (zhong tai)) ;~.
• Adding a wildcard symbol may retrieve word variants: yang yang ya juan rene ((qian wang) or (yan wang)) ((zhong zhi) or (zhong tai)) ;*.