Perhaps you should try some spelling variations:
yuhan wang » yan wang, yuhuan huang
zhang ming » zhang xin
yuan wang » yan wang, yuan kang, yuan chang
jie zhang » jia zhang, li zhang, bin zhang
ming cong » minh cong, ming kong, ming code
cong tai » long tail, zhong tai, cong van
can jie » yang jie, can join, huan jie

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 (yuan wang)) can jie zhang ming cong tai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yuhan wang) OR (yuan wang)) can jie zhang ming cong tai ;.
• Adding a wildcard symbol may retrieve word variants: wang ((yuhan wang) or (yuan wang)) can jie zhang ming cong tai ;*.