Perhaps you should try some spelling variations:
yan liang » yang liang, wang liang, you liang
zeng doug » jeng dong, zeng douglas
doug ping » dong ping, dou peng
dan yang » daun yang, tan yang, wang yang
yan guan » gan guan, yan yuan, yang guang
dong di » dong sin
ping yu » ming yu, ping ku, ping yi
yu zeng » yu zheng, yu cheng, yu zhong
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) OR (dong di)) ((((dan yang) OR (yan guan))) OR (yan liang)) ping yu zeng doug ping ;~.
• Adding a wildcard symbol may retrieve word variants: ((wang yan) or (dong di)) ((((dan yang) or (yan guan))) or (yan liang)) ping yu zeng doug ping ;*.