Perhaps you should try some spelling variations:
wang yiqian » wang yidan
cheng zhang » cheng han, zhen zhang, chen zheng
zhang sing » zhang ming, zhang jing, zhang ping
zhang han » zhang fan, zhang yan, zhang hanmo
sing kong » king kong, hong kong
kang han » kang chen, kong hang, dang hai
kong ghi » hong ghi

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 ((kang han) or (zhang han)) cheng zhang sing kong ghi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yiqian ((kang han) OR (zhang han)) cheng zhang sing kong ghi ;.
• Adding a wildcard symbol may retrieve word variants: wang yiqian ((kang han) or (zhang han)) cheng zhang sing kong ghi ;*.