Perhaps you should try some spelling variations:
yang guang » yan guan, yang liang
yang yang » wang yan
wang yang » wang yan, wang liang, wang yanling
wei yang » pei yang, wei wang, wei yang's
tong hui » wang hui
yan hua » tan hua, ya hua, tuan hua
di tong » hui tong, xin tong

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 (wang yang))) or (yang guang)) ((yan hua) or (wang hua)) wei yang di tong hui ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((yang yang) OR (wang yang))) OR (yang guang)) ((yan hua) OR (wang hua)) wei yang di tong hui ;.
• Adding a wildcard symbol may retrieve word variants: ((((yang yang) or (wang yang))) or (yang guang)) ((yan hua) or (wang hua)) wei yang di tong hui ;*.