Perhaps you should try some spelling variations:
yang guang » yang yang, yan guan, yang liang
wang yong » wang hyoung, wang yan, wang shiyong
yong yang » yang yang, dong yang, ying yang
wang yang » wang yan, wang liang, wang yanling
daun yang » dan yang, du yang, tan yang
kang hay » eang hay, kang han, kang tae
hai » hadi, haji, hari

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 yong yang guang ((wang yang) OR (daun yang)) du ((kang hay) OR (dang hai)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang yong yang guang ((wang yang) or (daun yang)) du ((kang hay) or (dang hai)) ;*.