Perhaps you should try some spelling variations:
wang yuhan » wang luhang, wang yan, wang yidan
yuhan kang » yuan kang, chan kang, yuhuan huang
yang jun » yang jui, pang jun, yang jin
jun wang » yuan wang, von wang, wen wang
yang xi » yang di, yang jui
yang yi » yang di, yang jui
hai » hadi, haji, hari

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 jun wang yuhan kang ((yang xi) OR (yang yi)) dang hai ;~.
• Adding a wildcard symbol may retrieve word variants: yang jun wang yuhan kang ((yang xi) or (yang yi)) dang hai ;*.