Perhaps you should try some spelling variations:
wang kyoung » wang hyoung, hwang byoung, kang young
china zhang » china chang, cheng zhang, chin chang
lang sheng » fang sheng, bing sheng, dong sheng
wang yong » wang yang, wang hyoung, wang yan
yang jie » yang di, yang jui, yang xi
yang jin » yang jun, ying jin, shang jin

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 ((yang jie) or (yang jin)) china zhang ((wang kyoung) OR (wang yong)) yun ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang sheng ((yang jie) OR (yang jin)) china zhang ((wang kyoung) OR (wang yong)) yun ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang sheng ((yang jie) or (yang jin)) china zhang ((wang kyoung) OR (wang yong)) yun ;*".