Perhaps you should try some spelling variations:
yang hua » wang hua, yang hui, yang jui
yang yao » yang yang, yang yi, yang fan
ying hua » ming hua, wang hua, ying zhu
rene han » rene ten
yang xi » yang di, yang yi, yang jui
han yan » nan yan, zhang yan, qian yan
cong » congo, long, hong

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((yang yao) OR (wang yan))) or (yang xi)) ((yang hua) or (ying hua)) rene han yan cong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((yang yao) OR (wang yan))) OR (yang xi)) ((yang hua) OR (ying hua)) rene han yan cong shu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((yang yao) OR (wang yan))) or (yang xi)) ((yang hua) or (ying hua)) rene han yan cong shu ;*".