Perhaps you should try some spelling variations:
cheng zhang » cheng han, zhen zhang, chen zheng
wang yidan » wang yan
zhang ming » zhang xin
ming zhong » xiang zhong, min hong, ming hung
kang chen » chang chen, jane chen, kang han
zhong zhi » zhang zhi, hong ghi, zhong tai
wang dan » wang yan, wang ban, wang yang

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 dan) or (kang chen)) cheng zhang ming zhong zhi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yidan ((wang dan) OR (kang chen)) cheng zhang ming zhong zhi ;*.