Perhaps you should try some spelling variations:
wang ning » wang jing, wang liang, wang yang
yang july » yang judy, yang jun
kang chen » chang chen, jane chen, kang han
chen zhen » chen zhe
zhen sing » zheng song, zhen yong
sing kong » king kong, hong kong
yang jui » yang judy, yang di, yang xi
kong van » cong van, duong van, kong hang

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: (wing OR lang) ((wang ning) OR (((yang jui) OR (yang july)))) kang chen zhen sing kong van ;~.
• Adding a wildcard symbol may retrieve word variants: (wing or lang) ((wang ning) or (((yang jui) or (yang july)))) kang chen zhen sing kong van ;*.