Perhaps you should try some spelling variations:
wang kyoung » wang hyoung, hwang byoung, wang yong
yang juan » yang jun, huang juan, jiang juan
long shu » cong shu, tong shui, long du
gong hui » tong hui, tong shui, wang hui
juan de » jan de, jean de
yan jiu » yang jie, yang jin, pang jiu
de yan » ke yan

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 kyoung yang juan de yan jiu ((long shu) OR (gong hui)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang kyoung yang juan de yan jiu ((long shu) or (gong hui)) ;*.