Perhaps you should try some spelling variations:
chai wang » chen wang
wang yang » wang liang, wang yanling
yang ying » yang yang, yang jing, huang ying
shang hai » shang kai, dang hai, chang ha
hong hai » zhong tai, dang hai, hong tan
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: wang yan ka chai wang yang ying ((hong hai) OR (shang hai)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang yan ka chai wang yang ying ((hong hai) or (shang hai)) ;*.