Perhaps you should try some spelling variations:
shang hai » shang kai, dang hai, chang ha
zhong zhi » zhang zhi, hong ghi, zhong tai
yang yun » yang jun, tang yun, yang yue
dan yang » daun yang, tan yang, wang yang
wang li » wang lei, wang lin, tang li
li yang » liu yang, li ying, li gang
yun dan » yun jang

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 li yang yun dan yang di ((shang hai) OR (zhong zhi)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang li yang yun dan yang di ((shang hai) or (zhong zhi)) ;*.