Perhaps you should try some spelling variations:
shang hai » shang kai, dang hai, chang ha
chai dan » chai onn, chai tam, shi dan
dan qing » dan yang, der qing
qing jin » ying jin, jing ji, yang jin
hong hai » zhong tai, dang hai, hong tan
nan yan » nan ya, wang yan, qian yan
ka chai » ka chuan, kim chai
yan ka » yang ka, yuan kai

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: nan yan ka chai dan qing jin ((hong hai) OR (shang hai)) ;~.
• Adding a wildcard symbol may retrieve word variants: nan yan ka chai dan qing jin ((hong hai) or (shang hai)) ;*.