Perhaps you should try some spelling variations:
yuhan cheng » yuan cheng, yunnan sheng
wang yuhan » wang luhang, wang yan, wang yidan
tan ying » fan ying, ran ying, tan yang
jin ying » li ying
yang jun » yang jui, pang jun, yang jin
yang xi » yang di, yang yi, 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: ((tan ying) OR (jin ying)) wang yuhan cheng ((yang jun) OR (yang xi)) dang hai ;~.
• Adding a wildcard symbol may retrieve word variants: ((tan ying) or (jin ying)) wang yuhan cheng ((yang jun) or (yang xi)) dang hai ;*.