Perhaps you should try some spelling variations:
wang yiqian » wang yidan
yiqian wang » yijiang wang, liqin wang, qian wang
cheng zhang » cheng han, zhen zhang, chen zheng
yuan cheng » yuan chang, huang cheng, yu cheng
wang yuan » wang yuhan, wang yan, fang yuan
zhang xin » zhang jian, zhang ming, zhang fan
zhong zhi » zhang zhi, zhong tai
hong ghi » hong g, hong hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yiqian wang yuan cheng zhang xin ((zhong zhi) or (hong ghi)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yiqian wang yuan cheng zhang xin ((zhong zhi) OR (hong ghi)) ;*.