Perhaps you should try some spelling variations:
cheng zhang » cheng han, zhen zhang, china zhang
yidan wang » yiqian wang, yan wang, yuan wang
chen zheng » chen zhen, chen aizheng, chen zhe
ming zhang » anming zhang, bin zhang, ming hung
qian wang » yiqian wang, qian rong, qian yan
zhang zhi » zhong zhi, wang zhi, zhang wei

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) or (qian wang)) hua ((chen zheng) or (cheng zhang)) ming zhang zhi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yidan wang) OR (qian wang)) hua ((chen zheng) OR (cheng zhang)) ming zhang zhi ;.
• Adding a wildcard symbol may retrieve word variants: wang ((yidan wang) or (qian wang)) hua ((chen zheng) or (cheng zhang)) ming zhang zhi ;*.