Perhaps you should try some spelling variations:
wang wang » wang yang, wang liang, wang yan
yang john » young john, king john, yang jun
tuan hua » tan hua, tuan vu
yuan hui » yuan fei, jaan hui, yang hui
yang jin » yang jie, yang jun, ying jin
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 wang ((tuan hua) or (yuan hui)) irene ((yang john) OR (yang jin)) ((wong sam) or (wong lai)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang wang ((tuan hua) OR (yuan hui)) irene ((yang john) OR (yang jin)) ((wong sam) OR (wong lai)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang wang ((tuan hua) or (yuan hui)) irene ((yang john) OR (yang jin)) ((wong sam) or (wong lai)) ;".
• Adding a wildcard symbol may retrieve word variants: wang wang ((tuan hua) or (yuan hui)) irene ((yang john) OR (yang jin)) ((wong sam) or (wong lai)) ;*.