Perhaps you should try some spelling variations:
john wong » john song, john bonn
yan guan » gan guan, yang guang, yihan guan
yan yuan » fang yuan, nan yan, yan clan
yan john » ryan john, gain john, tian john
wong sam » wong sau, wong lai, kong sar
hua ren » hua chen
wang » wing, wan, lang

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