Perhaps you should try some spelling variations:
yong yoon » wong yoon, yong khoon
dong yang » dong hoang, wang yang, yang yang
yong yan » yang yang, ying yang, wang yan
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 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 ((((yong yan) OR (yong yoon))) OR (dong yang)) hua rene ((yang jin) OR (yang jie)) wong sau ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((((yong yan) OR (yong yoon))) or (dong yang)) hua rene ((yang jin) or (yang jie)) wong sau ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((((yong yan) OR (yong yoon))) or (dong yang)) hua rene ((yang jin) or (yang jie)) wong sau ;*.