Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, yang yang
john song » john wong, john bonn, john ngosong
yan yuan » fang yuan, nan yan, yan clan
yan guan » gan guan, yang guang, yihan guan
ren yang » ren yan, chen yang, pei yang
dan yang » daun yang, tan yang, wang yang
song sam » wong sam, kong sar, song pae

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: lang ((yang liang) OR (((yan yuan) OR (yan guan)))) hua ((ren yang) OR (dan yang)) john song sam ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang ((yang liang) or (((yan yuan) OR (yan guan)))) hua ((ren yang) or (dan yang)) john song sam ;~".
• Adding a wildcard symbol may retrieve word variants: lang ((yang liang) or (((yan yuan) OR (yan guan)))) hua ((ren yang) or (dan yang)) john song sam ;*.