Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yang tuan » yang guang, yang dean, yang fan
ryan john » brian john, tian john
tuan hua » tan hua, tuan vu, yuan hui
yan john » gain john, tian john, von john
wong sam » wong sau, wong lai, kong sar
hua ren » hua chen

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 yang tuan hua ren ((yan john) OR (ryan john)) wong sam ;~.
• Adding a wildcard symbol may retrieve word variants: wang yang tuan hua ren ((yan john) or (ryan john)) wong sam ;*.