Perhaps you should try some spelling variations:
wang anh » dang anh, wang yang, wang yan
anh tuan » anh tran, dinh tuan, oanh tran
tuan hua » tan hua, tuan vu, yuan hui
yan john » ryan john, gain john, tian john
wong sam » wong sau, wong lai, von sam
hua ren » hua chen
sar » sara, star, saur

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "wang anh tuan hua ren yan john ((wong sam) OR (kong sar)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang anh tuan hua ren yan john ((wong sam) OR (kong sar)) ;*.