Perhaps you should try some spelling variations:
chai dan » chai onn, chai tam, shi dan
dan ying » dan qing, dan yang, fan ying
ying jin » yang jin, jing ji, yang jie
hong hai » shang hai, zhong tai, hong tan
wan yan » wang yan, nan yan, wai 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: wan yan ka chai dan ying jin ((dang hai) OR (hong hai)) ;~.
• Adding a wildcard symbol may retrieve word variants: wan yan ka chai dan ying jin ((dang hai) or (hong hai)) ;*.