Perhaps you should try some spelling variations:
wang yuhan » wang luhang, wang yan, wang yidan
wang yong » wang yang, wang hyoung, wang yan
yang july » yang judy, yang jun
shang hai » shang kai, dang hai, chang ha
yan yuan » yan guan, fang yuan, nan yan
yang jui » yang judy, yang di, yang xi
tan yang » dan yang, tan ying, tan yong

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 ((((yan yuan) OR (wang yuhan))) OR (yang jui)) tan yang july shang hai ;~.
• Adding a wildcard symbol may retrieve word variants: wang yong ((((yan yuan) or (wang yuhan))) or (yang jui)) tan yang july shang hai ;*.