Perhaps you should try some spelling variations:
yang guang » yang yang, yan guan
yang liang » wang liang, yan liang, yang yang
yan huang » yan guan, yan liang, yan wang
chih hang » chin chang, shih huang, chih yung
hang zeng » hang seng, huang weng, tang zheng
zeng doug » jeng dong, zeng douglas
doug sin » dong sin
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 huang) OR (((yang guang) OR (yang liang)))) lin chih hang zeng doug sin ;~.
• Adding a wildcard symbol may retrieve word variants: wang ((yan huang) or (((yang guang) or (yang liang)))) lin chih hang zeng doug sin ;*.