Perhaps you should try some spelling variations:
china zhang » china chang, cheng zhang, chin chang
zhang wang » zhang fang, zhang zhang, zhang fan
kyoung yun » young yun, kyoung yang, young eun
hyoung gun » young eun
yang jie » yang jin, yang di, yang jui
yan je » han je
fang » lang, gang, fan

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

• Performing a fuzzy search may retrieve terms with similar spellings: fang sheng ((yan je) or (yang jie)) china zhang wang ((kyoung yun) OR (hyoung gun)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: fang sheng ((yan je) OR (yang jie)) china zhang wang ((kyoung yun) OR (hyoung gun)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fang sheng ((yan je) or (yang jie)) china zhang wang ((kyoung yun) OR (hyoung gun)) ;*".