Perhaps you should try some spelling variations:
china zhang » china chang, cheng zhang, chin chang
yuhan wang » yuan wang, yan wang, yuhuan huang
zhang minh » zhang ming, zhang xin, chang min
chan kang » chung kang, chan eng, chan fong
hua china » eu china, a china, era china
cong tai » long tail, zhong tai, cong van

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((yuhan wang) or (chan kang)) hua china zhang minh cong tai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yuhan wang) OR (chan kang)) hua china zhang minh cong tai ;.
• Adding a wildcard symbol may retrieve word variants: wang ((yuhan wang) or (chan kang)) hua china zhang minh cong tai ;*.