Perhaps you should try some spelling variations:
shang hai » shang kai, dang hai, chang ha
yuan wang » yan wang, yuan kang, yuan chang
zhong zhi » zhang zhi, hong ghi, zhong tai
wang lin » wang li, wang qin, yang lin
yan yuan » yan guan, fang yuan, nan yan
lin yan » liu yan, lin man, lin nan
yan yi » yang yi, tan yi, yan zi

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 lin yan yuan wang yan yi ((shang hai) OR (zhong zhi)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang lin yan yuan wang yan yi ((shang hai) or (zhong zhi)) ;*.