Perhaps you should try some spelling variations:
cheng zhang » cheng han, zhen zhang, chen zheng
china zhang » china chang, chin chang, china han
lang sheng » fang sheng, bing sheng, dong sheng
fan kyoung » han kyung
kyoung yun » young yun, kyoung yang, hyoung gun
yang jin » yang jie, yang jun, ying jin
yan je » han je, yang jie

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

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