Perhaps you should try some spelling variations:
yang guang » yan guan, yang liang
tuan china » wuhan china, can china, taiwan china
yang yang » wang yang
yuan hui » jaan hui, tuan hua, yang hui
pei wang » pei yang, wei wang, li wang
yan long » yan cong, van long, pain long
long do » long d, long du, longer do

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yang yang) or (yang guang)) ((((yuan hui) or (yuan fei))) or (tuan china)) pei wang yan long do ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang yang) OR (yang guang)) ((((yuan hui) OR (yuan fei))) OR (tuan china)) pei wang yan long do ;.
• Adding a wildcard symbol may retrieve word variants: ((yang yang) or (yang guang)) ((((yuan hui) or (yuan fei))) or (tuan china)) pei wang yan long do ;*.