Perhaps you should try some spelling variations:
shang hai » shang kai, dang hai, chang ha
wang yue » wong yue, wang hua, wang yan
yue chen » yu chen, yun chen, yulu chen
yang jin » yang jie, yang jun, ying jin
yang xi » yang jui
yang yi » yang jui
x wang » _ wang
tan x » tan _, tag x, tan 5

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: tan x wang yue chen ((((yang xi) OR (yang jin))) OR (((yang yi) OR (yang di)))) shang hai ;~.
• Adding a wildcard symbol may retrieve word variants: tan x wang yue chen ((((yang xi) or (yang jin))) or (((yang yi) or (yang di)))) shang hai ;*.