Perhaps you should try some spelling variations:
hwang byoung » wang hyoung
kang young » wang hyoung
dang hadi » dang hai
gan guan » yan guan, quan guan, fan guon
ran ying » fan ying, tan ying, jin ying
tan yang » dan yang, tan ying, tan yong
mu dang » duc dang

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: ((hwang byoung) OR (kang young)) gan guan ((ran ying) OR (tan yang)) mu dang hadi ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hwang byoung) OR (kang young)) gan guan ((ran ying) or (tan yang)) mu dang hadi ;~".
• Adding a wildcard symbol may retrieve word variants: ((hwang byoung) OR (kang young)) gan guan ((ran ying) or (tan yang)) mu dang hadi ;*.