Perhaps you should try some spelling variations:
hyoung gun » young eun
kang chen » chang chen, jane chen, tang chun
kang han » kong hang, zhang han, dang hai
yang jie » yang jin, yang di, yang jui
longer a » longer _
long du » long d, long do, long run
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 hyoung gun ((kang chen) OR (kang han)) yang jie ((long du) OR (longer a)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang hyoung gun ((kang chen) OR (kang han)) yang jie ((long du) or (longer a)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang hyoung gun ((kang chen) OR (kang han)) yang jie ((long du) or (longer a)) ;*.