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

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((yan guan) or (yan yuan)) hua ren yan john song sam ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yan guan) OR (yan yuan)) hua ren yan john song sam ;.
• Adding a wildcard symbol may retrieve word variants: wang ((yan guan) or (yan yuan)) hua ren yan john song sam ;*.