Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yang tuan » yang guang, yang dean, yang fan
yang john » young john, king john, yang jin
kong john » king john, wong john, longo john
vu irene » _ irene
wong sam » wong sau, wong lai, kong sar
tuan vu » thanh vu, tuan hua

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yang tuan vu irene ((yang john) or (kong john)) ((wong sam) or (kong (sar or saur))) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang tuan vu irene ((yang john) OR (kong john)) ((wong sam) OR (kong (sar OR saur))) ;.
• Adding a wildcard symbol may retrieve word variants: wang yang tuan vu irene ((yang john) or (kong john)) ((wong sam) or (kong (sar or saur))) ;*.