Perhaps you should try some spelling variations:
cohen rong » chen rong, cohen jon
dong wei » wang wei, dong di, dong hoi
yang yun » yang jun, tang yun, yang yue
wei ann » wei aun, owen ann, wei wang
m cohen » im hohen
rong di » dong di, gong di, long did
yang yi » yang di, yang jui
yang xi » yang di, yang jui
ann m » ana m, ann e, ann l

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: dong wei ann m cohen rong di ((yang yun) OR (((((yang judy) OR (yang yi))) OR (yang xi)))) ;~.
• Adding a wildcard symbol may retrieve word variants: dong wei ann m cohen rong di ((yang yun) or (((((yang judy) or (yang yi))) or (yang xi)))) ;*.