Perhaps you should try some spelling variations:
cheng zhang » cheng han, zhen zhang, chen zheng
wang yidan » wang yan
yidan wang » yiqian wang, qian wang, yan wang
hua cheng » hua chen, huang cheng, yuan cheng
zhang min » zhang ming, zhang xin, chang min
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 yidan wang hua cheng zhang min ((hong ghi) or (zhong zhi)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yidan wang hua cheng zhang min ((hong ghi) OR (zhong zhi)) ;.
• Adding a wildcard symbol may retrieve word variants: wang yidan wang hua cheng zhang min ((hong ghi) or (zhong zhi)) ;*.