Perhaps you should try some spelling variations:
chang zhang » cheng zhang, zhang zhang, china zhang
yidan wang » yiqian wang, yan wang, yuan wang
yuan chang » yuan cheng, huang chang, han chang
qian wang » yiqian wang, qian rong, qian yan
zhang xin » zhang jian, zhang ming, zhang fan
zhong zhi » hong ghi, zhong tai
zhang zhi » wang zhi, zhang wei, zhang dai

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)) yuan chang zhang xin ((zhong zhi) or (zhang zhi)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yidan wang) OR (qian wang)) yuan chang zhang xin ((zhong zhi) OR (zhang zhi)) ;.
• Adding a wildcard symbol may retrieve word variants: wang ((yidan wang) or (qian wang)) yuan chang zhang xin ((zhong zhi) or (zhang zhi)) ;*.