Perhaps you should try some spelling variations:
cheng zhang » cheng han, zhen zhang, chen zheng
zhang sindg » zhang ming, zhang jing, zhang ping
wan yan » wang yan, nan yan, wai yan
yuan zi » yan zi, yuan li, yuan hui
dong » doing, long, done
sindg » signdg, sinddg, skindg
sin » sign, sind, skin

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

• Performing a fuzzy search may retrieve terms with similar spellings: wan yan ((yuan fei) or (yuan zi)) cheng zhang sindg dong sin ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan yan ((yuan fei) OR (yuan zi)) cheng zhang sindg dong sin ;*.