Perhaps you should try some spelling variations:
kang young » wang hyoung
yang guang » yang yang, yang liang
dang hadi » dang hai
yan guan » gan guan, yihan guan, quan guan
yan yuan » fang yuan, nan yan, yan clan
tan yang » dan yang, tan ying, tan yong
yang duc » yang du, sang duck, yang di

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: kang young ((((yan guan) OR (yan yuan))) OR (yang guang)) tan yang duc dang hadi ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "kang young ((((yan guan) OR (yan yuan))) or (yang guang)) tan yang duc dang hadi ;~".
• Adding a wildcard symbol may retrieve word variants: kang young ((((yan guan) OR (yan yuan))) or (yang guang)) tan yang duc dang hadi ;*.