Perhaps you should try some spelling variations:
wang dan » wang yan, wang ban, wang yidan
yang hua » wang hua, ying hua, wang hui
yang hui » wang hui, yang muxi, zhang hui
yang jin » yang jie, yang jun, ying jin
yang jui » yang judy, yang di, yang xi
yan jiu » yang jie, pang jiu
long do » long d, long du, longer do

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang dan ((yang hua) OR (yang hui)) rene ((((yan jiu) or (yang jin))) or (yang jui)) long do ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang dan ((yang hua) OR (yang hui)) rene ((((yan jiu) OR (yang jin))) OR (yang jui)) long do ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang dan ((yang hua) OR (yang hui)) rene ((((yan jiu) or (yang jin))) or (yang jui)) long do ;*".