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
han cheng » han chang, tan cheng, huang cheng
zhang xin » zhang jian, zhang ming, zhang fan
zhong zhi » zhang zhi, zhong tai
wang han » wang yan, kang han, wang ban
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 han cheng zhang xin ((zhong zhi) or (hong ghi)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yiqian wang han cheng zhang xin ((zhong zhi) OR (hong ghi)) ;*.