Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, yang yang
yang guang » yang yang, yan guan
than china » tuan china, han china, wuhan china
de longer » does longer, _ longer, de lange
pei yang » wei yang, hui yang, yi yang
longer a » longer _
tan hua » tuan hua, wang hua, tan chia
pei yun » lei kyun, mei yung, wei yuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yang liang) or (yang guang)) ((tan hua) or (than china)) ((pei yang) or (pei yun)) de longer a ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang liang) OR (yang guang)) ((tan hua) OR (than china)) ((pei yang) OR (pei yun)) de longer a ;.
• Adding a wildcard symbol may retrieve word variants: ((yang liang) or (yang guang)) ((tan hua) or (than china)) ((pei yang) or (pei yun)) de longer a ;*.