Perhaps you should try some spelling variations:
wang wang » wang yang, wang liang, wang yan
wong john » wrong john, kong john, longo john
yuan hui » yuan fei, jaan hui, tuan hua
wong sam » kong sar, von sam, wong max
wong sau » wong siu, wong shiu, kong sar
tuan vu » thanh vu, tuan hua
lai » laid

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

• If you are trying to use Boolean operators, they must be ALL CAPS: wang wang ((yuan hui) OR (tuan vu)) irene wong john ((wong sam) OR (((wong sau) OR (wong lai)))) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang wang ((yuan hui) or (tuan vu)) irene wong john ((wong sam) or (((wong sau) OR (wong lai)))) ;~".
• Adding a wildcard symbol may retrieve word variants: wang wang ((yuan hui) or (tuan vu)) irene wong john ((wong sam) or (((wong sau) OR (wong lai)))) ;*.