Perhaps you should try some spelling variations:
john wong » john song, john bonn
yang john » young john, king john, yang jin
wang anh » dang anh, wang yang, wang yan
tuan hua » tuan vu, yuan hui
ren yang » ren yan, chen yang, dan yang
tan hua » tan chia, tan puay
wong ze » song ze, wong yue, wong yee

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

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