Perhaps you should try some spelling variations:
wang ying » wang yang, wang yong, wang jing
yang jin » yang jie, ying jin, shang jin
yang jun » yang jui, pang jun, yang judy
tan yang » dan yang, tan ying, tao yang
tan yong » tan hong, tan kong, tan ying
duc lang » duc dang
lang hai » dang hai, shang hai, hong hai

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 ((yang jin) OR (yang jun)) ((tan yang) OR (tan yong)) duc lang hai ;~.
• Adding a wildcard symbol may retrieve word variants: wang ying ((yang jin) or (yang jun)) ((tan yang) or (tan yong)) duc lang hai ;*.