Perhaps you should try some spelling variations:
chen shuang » chen chuan, chen chung, chen huigang
cheng zhang » cheng han, zhen zhang, chen zheng
ming jeong » min jeong, ming kong
jeong shu » jeong su, cong shu
wing yan » wang yan, wing ian, wing tan
yan yang » yang yang, yao yang, dan yang
yang jui » yang judy, yang di, yang xi

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 yan yang jui ((cheng zhang) OR (chen shuang)) ming jeong shu ;~.
• Adding a wildcard symbol may retrieve word variants: wing yan yang jui ((cheng zhang) or (chen shuang)) ming jeong shu ;*.