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

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 jie)) china zhang zhang ((hyoung yu) OR (hong yu)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fang sheng ((yan je) or (yang jie)) china zhang zhang ((hyoung yu) OR (hong yu)) ;~".
• Adding a wildcard symbol may retrieve word variants: fang sheng ((yan je) or (yang jie)) china zhang zhang ((hyoung yu) OR (hong yu)) ;*.