Perhaps you should try some spelling variations:
yang guang » yan guan, yang liang
wang yang » wang yan, wang liang, wang yanling
yang yang » wang yan
jin kyung » jin ying, han kyung, jin kang
kyung kim » hyung kim, kyung min, yong kim
kim eung » kim young, kim song
eung shu » cong shu, eung ju

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: ((((yang guang) OR (wang yang))) OR (yang yang)) ((wang hua) OR (ya hua)) jin kyung kim eung shu ;~.
• Adding a wildcard symbol may retrieve word variants: ((((yang guang) or (wang yang))) or (yang yang)) ((wang hua) or (ya hua)) jin kyung kim eung shu ;*.