Perhaps you should try some spelling variations:
chin chang » china chang, chain change, china zhang
gang wang » wang yang, gang gong, gang sung
chin fang » china wang, china yang, cai fang
vii chang » viii chang, ii chang, vii anhang
xia shang » xiao zhang, xia fang, jia zhang
shang kai » shang hai
yan xi » yang xi, 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: gang wang yan xi ((((chin chang) OR (chin fang))) OR (vii chang)) xia shang kai ;~.
• Adding a wildcard symbol may retrieve word variants: gang wang yan xi ((((chin chang) or (chin fang))) or (vii chang)) xia shang kai ;*.