Perhaps you should try some spelling variations:
yuan wang » yan wang, yuan kang, yuan chang
gene hong » eng hong, gene one
hong than » hong tan, long thanh, hong hai
hong sau » hong paul, kong sar, hong seo
wong sau » wong sam, wong siu, wong shiu
yan i » yan zi, ian i, yan _
can i » can _, can a

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: yuan wang ((yan i) OR (can i)) gene hong than ((hong sau) or (wong sau)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yuan wang ((yan i) OR (can i)) gene hong than ((hong sau) OR (wong sau)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yuan wang ((yan i) OR (can i)) gene hong than ((hong sau) or (wong sau)) ;*".