Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
gain yang » dan yang, daun yang, tan yang
yan yuan » yan guan, fang yuan, nan yan
yan yun » yang yun, yap yun, tang yun
yan kun » yan guan
yang yi » yang di, yang xi, yang jui
yi chen » jui chen

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yang ((((yan yun) OR (yan yuan))) or (yan kun)) gain yang yi chen (hai or hadi) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang ((((yan yun) OR (yan yuan))) OR (yan kun)) gain yang yi chen (hai OR hadi) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang ((((yan yun) OR (yan yuan))) or (yan kun)) gain yang yi chen (hai or hadi) ;".
• Adding a wildcard symbol may retrieve word variants: wang yang ((((yan yun) OR (yan yuan))) or (yan kun)) gain yang yi chen (hai or hadi) ;*.