Perhaps you should try some spelling variations:
cheng zhang » cheng han, zhen zhang, chen zheng
shen zhang » zhen zhang, shen chang, chen zheng
wang qian » wang qiao, wang qin, wang liang
qian wang » yiqian wang, qian rong, qian yan
wang khan » wang shawn, wang yuhan, wang yan
cong zhi » zhong zhi, cong shu

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang qian wang khan ((shen zhang) OR (cheng zhang)) xin ((cong zhi) or (wang zhi)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang qian wang khan ((shen zhang) OR (cheng zhang)) xin ((cong zhi) OR (wang zhi)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang qian wang khan ((shen zhang) OR (cheng zhang)) xin ((cong zhi) or (wang zhi)) ;".
• Adding a wildcard symbol may retrieve word variants: wang qian wang khan ((shen zhang) OR (cheng zhang)) xin ((cong zhi) or (wang zhi)) ;*.