Perhaps you should try some spelling variations:
dong yang » dong hoang, wang yang, yang yang
yong yan » yang yang, ying yang, yong yoon
hua rene » hua ren, juan rene
yang jin » yang jun, ying jin, shang jin
yang jie » yang di, yang jui, yang xi
wong sau » wong sam, wong shiu, wong lai
wong siu » wong shiu, kong siu, wong siew

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