Perhaps you should try some spelling variations:
van thanh » tran thanh, phan thanh, lam thanh
kind john » king john, hinde john, und john
kong sara » kong sar
wang van » wang yan, wang ban, wang dan
thanh vu » thanh van, thanh _
vu irene » _ irene
wong sam » wong sau, wong lai, kong sar

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang van thanh vu irene kind john ((wong sam) or (kong sara)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang van thanh vu irene kind john ((wong sam) OR (kong sara)) ;*.