Perhaps you should try some spelling variations:
yang hua » wang hua, yang hui, wang hui
ying hua » ming hua, wang hua, ying zhu
yang jin » yang jie, yang jun, ying jin
yang jui » yang judy, yang di, yang xi
yan jiu » yang jie, pang jiu
long du » long d, long do, long run
wang » wing, wan, lang

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

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