Perhaps you should try some spelling variations:
cheng zhang » cheng han, zhen zhang, chen zheng
yidan wang » yiqian wang, yan wang, yuan wang
shen zhang » zhen zhang, shen chang, chen zheng
min hyoung » min hong, mun young
hyoung hai » hong hai
qian wang » yiqian wang, qian rong, qian yan

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((yidan wang) or (qian wang)) han ((shen zhang) OR (cheng zhang)) min hyoung hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yidan wang) OR (qian wang)) han ((shen zhang) OR (cheng zhang)) min hyoung hai ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yidan wang) or (qian wang)) han ((shen zhang) OR (cheng zhang)) min hyoung hai ;*".