Perhaps you should try some spelling variations:
wang yang » wang liang, wang yanling
gain yang » dan yang, daun yang, tan yang
chang hai » chang ha, change has, dang hai
shang hai » shang kai, dang hai, chang ha
yan yun » yan yuan, yang yun, yap yun
yan kun » yan guan, yan yuan
yang yi » yang di, yang xi, yang jui

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) or (wang yan)) ((yan yun) or (yan kun)) gain yang yi ((chang hai) OR (shang hai)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yang) OR (wang yan)) ((yan yun) OR (yan kun)) gain yang yi ((chang hai) OR (shang hai)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yang) or (wang yan)) ((yan yun) or (yan kun)) gain yang yi ((chang hai) OR (shang hai)) ;*".