Perhaps you should try some spelling variations:
wang liang » wang yang
wang wang » wang yang, wang yan, wang yong
hua irene » hua ren
yang john » young john, king john, yang jin
john wong » john song, john bonn
tuan hua » tan hua, tuan vu, yuan hui
wong sau » wong sam, wong siu, wong shiu

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