Perhaps you should try some spelling variations:
green chen » gren chen, green china, green clean
yuan wang » yan wang, yuan kang, yuan chang
hui green » eu green, i green, ii green
chen ming » cheng ming, chen ping, chan ming
wong siu » wong shiu, kong siu, wong siew
wong sau » wong sam, wong shiu, wong lai
yan hui » yang hui, yuan hui, wang hui

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 hui green chen ming ((wong siu) or (wong sau)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yuan wang yan hui green chen ming ((wong siu) OR (wong sau)) ;*.