Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, yang yang
hao zhang » xiao zhang, zhao zheng, ceo zhang
john song » john wong, john bonn, john ngosong
yan guan » gan guan, yan yuan, yang guang
hua hao » hua zhao, hua xiao
li song » li cong, li rong, kim song
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 (yang liang)) hua hao zhang ((john song) OR (((yi rong) OR (li song)))) shu ;~.
• Adding a wildcard symbol may retrieve word variants: wang ((yan guan) or (yang liang)) hua hao zhang ((john song) or (((yi rong) or (li song)))) shu ;*.