Perhaps you should try some spelling variations:
china chang » chin chang, china zhang, china changqi
chang wang » chang ann, chang won, hong wang
kyoung yun » kyoung yang, hyoung gun, young eun
young yun » young eun, young young, young men
yang jin » yang jie, yang jun, ying jin
yan je » han je, yang jie
fang » lang, gang, fan

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: fang sheng ((yan je) OR (yang jin)) china chang wang ((kyoung yun) OR (young yun)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fang sheng ((yan je) or (yang jin)) china chang wang ((kyoung yun) OR (young yun)) ;~".
• Adding a wildcard symbol may retrieve word variants: fang sheng ((yan je) or (yang jin)) china chang wang ((kyoung yun) OR (young yun)) ;*.