Perhaps you should try some spelling variations:
yuan chang » yuan cheng, huang chang, han chang
zhang han » zhang fan, zhang yan, zhang hanmo
wang yang » wang yan, wang liang, wang yanling
shang kai » shang hai
zhang zhi » zhong zhi, wang zhi, zhang wei
sun wang » sun ang, sun qiang, yuan wang
yang jin » yang jie, yang jun, ying jin

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 ((yuan chang) OR (zhang han)) sun wang yang jin ((shang kai) OR (zhang zhi)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang ((yuan chang) or (zhang han)) sun wang yang jin ((shang kai) or (zhang zhi)) ;*.