Perhaps you should try some spelling variations:
kyoung yun » young yun, kyoung yang, hyoung gun
jin kyoung » jin kyung, kim kyoung, yi kyoung
fang zhen » fang sheng, tang zheng, wang zheng
zhen pong » zhen yong, zheng rong, zheng cong
yu cheng » yu chen, _ cheng
ping jin » ying jin, ping jia, ping lin
yi chen » jui chen

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

• Performing a fuzzy search may retrieve terms with similar spellings: fang zhen pong ((yu cheng) or (yi chen)) ping jin kyoung yun ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: fang zhen pong ((yu cheng) OR (yi chen)) ping jin kyoung yun ;*.