Perhaps you should try some spelling variations:
wang dong » wang yong, wang hong, wang yang
dong yang » dong hoang, wang yang, yang yang
juan rene » juan meng, juan rana
hua rene » hua ren
yang jie » yang jin, yang di, yang xi
yang jui » yang judy, yang di, yang xi
wong sau » wong sam, wong siu, wong shiu

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: wang dong yang ((hua rene) OR (juan rene)) ((yang jie) OR (yang jui)) wong sau ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang dong yang ((hua rene) OR (juan rene)) ((yang jie) or (yang jui)) wong sau ;~".
• Adding a wildcard symbol may retrieve word variants: wang dong yang ((hua rene) OR (juan rene)) ((yang jie) or (yang jui)) wong sau ;*.