Perhaps you should try some spelling variations:
yang dewan » wang dewen
wang yuhan » wang luhang, wang yan, wang yidan
wang tang » wang yang, tang tang, wang liang
tang wang » tang tang, hong wang, ping wang
tan yang » dan yang, tan ying, tan yong
tan kong » tan hong
dean » jean, den, mean

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 tang wang yuhan ((tan yang) OR (tan kong)) kim ((yang dewan) OR (yang dean)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang tang wang yuhan ((tan yang) or (tan kong)) kim ((yang dewan) OR (yang dean)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang tang wang yuhan ((tan yang) or (tan kong)) kim ((yang dewan) OR (yang dean)) ;*.