Perhaps you should try some spelling variations:
yang john » young john, king john, yang jin
john wong » john song, john bonn
yan tran » oanh tran, anh tran, ca tran
hua chen » jui chen, yu chen, a chen
wong sau » wong sam, wong siu, wong shiu
yi chen » jui chen
wang » wing, wan, lang

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

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