Perhaps you should try some spelling variations:
yang china » hang china, kong china, ming china
china chen » china shen, china china, china chang
wong shiu » wong siu, cong shu, song shin
wing yan » wang yan, wing ian, wing tan
yan yang » yang yang, yao yang, dan yang
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: wing yan yang china chen ((((yang jui) OR (yang di))) OR (pang jun)) wong shiu ;~.
• Adding a wildcard symbol may retrieve word variants: wing yan yang china chen ((((yang jui) or (yang di))) or (pang jun)) wong shiu ;*.