Perhaps you should try some spelling variations:
kyoung yun » young yun, kyoung yang, hyoung gun
han chang » huang chang, than change, can change
chang yan » zhang yan, chang yun, wang yan
fang yuan » wang yuhan, wang yan, meng yuan
yan hyun » yan kun, yan yuan, yang yun
yan hua » tan hua, ya hua, wang hua
hua ren » hua chen

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

• Performing a fuzzy search may retrieve terms with similar spellings: han chang yan hua ren ((yan hyun) or (fang yuan)) kyoung yun ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: han chang yan hua ren ((yan hyun) OR (fang yuan)) kyoung yun ;*.