Perhaps you should try some spelling variations:
john kong » john king, john song, john wong
yang john » young john, king john, yang jin
yan guan » gan guan, yang guang, yihan guan
yan yuan » fang yuan, nan yan, yan clan
ren yang » ren yan, chen yang, dan yang
hua ren » hua chen
wang » wing, wan, lang
sar » sara, star, saur

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 yang john kong sar ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yan guan) OR (yan yuan)) hua ren yang john kong sar ;.
• Adding a wildcard symbol may retrieve word variants: wang ((yan guan) or (yan yuan)) hua ren yang john kong sar ;*.