Perhaps you should try some spelling variations:
wang oanh » wang yan, wang yang, dang anh
oanh tran » anh tran, anh tuan, binh tran
chen king » chen ping, chen jing, machen king
tran hua » tan hua, tuan hua, tran duc
hua chen » jui chen, yu chen, a chen
wong sam » wong sau, kong sar, von sam
lai » laid

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang oanh tran hua chen king john ((wong sam) or (wong lai)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang oanh tran hua chen king john ((wong sam) OR (wong lai)) ;.
• Adding a wildcard symbol may retrieve word variants: wang oanh tran hua chen king john ((wong sam) or (wong lai)) ;*.