Perhaps you should try some spelling variations:
yang guang » yang yang, yang liang
tuan china » wuhan china, can china, taiwan china
yan guan » gan guan, yan yuan, yihan guan
pei yang » wei yang, hui yang, pei yun
yang jie » yang jin, yang di, yang jui
long du » long do, long run, long did
long d » long do, long _, long 2

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: ((yang guang) OR (yan guan)) ((wang hua) OR (tuan china)) pei yang jie ((long du) OR (long d)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang guang) or (yan guan)) ((wang hua) or (tuan china)) pei yang jie ((long du) OR (long d)) ;~".
• Adding a wildcard symbol may retrieve word variants: ((yang guang) or (yan guan)) ((wang hua) or (tuan china)) pei yang jie ((long du) OR (long d)) ;*.