Perhaps you should try some spelling variations:
chin chang » china chang, chain change, china zhang
bing sheng » fang sheng, dong sheng, dung sheng
chang wang » chang ann, chang won, hong wang
kyoung yun » young yun, kyoung yang, young eun
hyoung gun » young eun
yang jui » yang judy, yang di, yang xi
yan je » han je, yang jie

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