Perhaps you should try some spelling variations:
wang guang » yang guang, wang luhang, wang liang
ping wang » ping pong, hong wang
guang jie » yang jie, guang zhe, huan jie
yang july » yang judy, yang jun
jie chen » jane chen, jui chen, yi chen
yang jin » yang jie, yang jun, ying jin
yang jui » yang judy, yang xi, yang yi

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: ping wang guang jie chen ((((((yang jin) OR (yang jui))) OR (yang di))) OR (yang july)) wang zhi ;~.
• Adding a wildcard symbol may retrieve word variants: ping wang guang jie chen ((((((yang jin) or (yang jui))) or (yang di))) or (yang july)) wang zhi ;*.