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

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "wang kyoung yang juan de yan jiu ((long du) OR (((gong hui) OR (tong hui)))) ;~".
• Adding a wildcard symbol may retrieve word variants: wang kyoung yang juan de yan jiu ((long du) OR (((gong hui) OR (tong hui)))) ;*.