Perhaps you should try some spelling variations:
yan thanh » van thanh, tran thanh, phan thanh
yang john » young john, king john, yang jin
thanh vu » thanh van, thanh _
vu irene » _ irene
yang jun » yang jui, pang jun, yang jin
wong siu » wong shiu, kong siu, wong sau
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yan thanh vu irene ((yang john) or (yang jun)) wong siu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yan thanh vu irene ((yang john) OR (yang jun)) wong siu ;.
• Adding a wildcard symbol may retrieve word variants: wang yan thanh vu irene ((yang john) or (yang jun)) wong siu ;*.