Perhaps you should try some spelling variations:
cheng zhang » cheng han, zhen zhang, chen zheng
yidan wang » yiqian wang, qian wang, yuan wang
shen zhang » zhen zhang, shen chang, chen zheng
bin zhang » binh thang, li zhang, jia zhang
zhang zhi » zhong zhi, wang zhi, zhang wei
yan wang » yuan wang, yang yang, qian wang

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

• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yidan wang) OR (yan wang)) han ((shen zhang) OR (cheng zhang)) bin zhang zhi ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yidan wang) or (yan wang)) han ((shen zhang) OR (cheng zhang)) bin zhang zhi ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((yidan wang) or (yan wang)) han ((shen zhang) OR (cheng zhang)) bin zhang zhi ;*.