Perhaps you should try some spelling variations:
wang ying » wang yang, wang jing, wang ning
wang yong » wang yang, wang hyoung, wang yan
chin fang » chin chang, china wang, china yang
yan yuan » yan guan, fang yuan, nan yan
yuan tan » huan t'an, yuan kang, yuan ting
tan yang » dan yang, tan ying, tan yong
yi dang » yi gang, yi yang, yi chang

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 ying) OR (wang yong)) yan yuan tan yang ((yi dang) OR (chin fang)) (hai OR hadi) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang ying) OR (wang yong)) yan yuan tan yang ((yi dang) or (chin fang)) (hai or hadi) ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang ying) OR (wang yong)) yan yuan tan yang ((yi dang) or (chin fang)) (hai or hadi) ;*.