Perhaps you should try some spelling variations:
yuan wang » yan wang, yuan kang, yuan chang
wang yang » wang yan, wang liang, wang yanling
dang hadi » dang hai
wei chen » wei shen, jui chen, yi chen
yang jin » yang jie, yang jun, ying jin
yang xi » yang di, yang jui
yang yi » yang di, yang jui

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: yuan wang yang ((wei chen) OR (frei chen)) ((yang jin) OR (((yang xi) OR (yang yi)))) dang hadi ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yuan wang yang ((wei chen) or (frei chen)) ((yang jin) or (((yang xi) OR (yang yi)))) dang hadi ;~".
• Adding a wildcard symbol may retrieve word variants: yuan wang yang ((wei chen) or (frei chen)) ((yang jin) or (((yang xi) OR (yang yi)))) dang hadi ;*.