Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
yan liang » yang liang, wang liang, you liang
yan guan » gan guan, yan yuan, yang guang
wei wang » wei yang, wen wang, wei shang
tong hui » wang hui
tuan vu » thanh vu, tuan hua
wang li » wang lei, wang lin, tang li
li tong » li cong, li rong, li song

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: ((((yang yang) OR (yan liang))) OR (yan guan)) ((ya hua) OR (tuan vu)) wei wang li tong hui ;~.
• Adding a wildcard symbol may retrieve word variants: ((((yang yang) or (yan liang))) or (yan guan)) ((ya hua) or (tuan vu)) wei wang li tong hui ;*.