Perhaps you should try some spelling variations:
wang yong » wang yang, wang hyoung, wang yan
yang jin » yang jie, yang jun, ying jin
rent yan » ren yan, rent a
wong sam » wong lai, kong sar, von sam
wong sau » wong siu, wong shiu, wong lai
won sau » wong siu
yan ji » yan jiu, ban ji, pan ji

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