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

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 hua irene yang john ((wong sam) or (kong sara)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang tuan hua irene yang john ((wong sam) OR (kong sara)) ;.
• Adding a wildcard symbol may retrieve word variants: wang yang tuan hua irene yang john ((wong sam) or (kong sara)) ;*.