Perhaps you should try some spelling variations:
yuan wang » yan wang, yuan kang, yuan chang
wang yong » wang yang, wang hyoung, wang shiyong
wang ning » wang jing, wang liang, wang yang
gang yan » gang yao, wang yang, zhang yan
yan yuan » yan guan, fang yuan, nan yan
eang hay » dang hai
kang han » kang chen, kong hang, zhang han

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 yong) OR (wang yan)) gang yan yuan wang ning ((eang hay) OR (kang han)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yong) or (wang yan)) gang yan yuan wang ning ((eang hay) OR (kang han)) ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang yong) or (wang yan)) gang yan yuan wang ning ((eang hay) OR (kang han)) ;*.