Perhaps you should try some spelling variations:
hyoung quan » hyoung gun
quan guan » gan guan, quan guo, yan guan
guan wang » yuan wang, qian wang, yan wang
kang chen » chang chen, jane chen, kang han
dang hadi » dang hai
yang jun » yang jui, pang jun, yang jin
yan jui » yang jui, yang hui

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 hyoung quan guan wang ((yan jui) OR (yang jun)) ((kang chen) OR (dang hadi)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang hyoung quan guan wang ((yan jui) OR (yang jun)) ((kang chen) or (dang hadi)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang hyoung quan guan wang ((yan jui) OR (yang jun)) ((kang chen) or (dang hadi)) ;*.