Perhaps you should try some spelling variations:
yang guang » yang yang, yan guan, yang liang
yuan kang » yuan wang, yuan chang, chan kang
guang min » chang min, gong min, tang min
wing yan » wang yan, wing ian, wing tan
yuan kai » yuan fei, tan kai, yuan hui
yan can » yan clan, man can, yan cong
tuan vu » thanh vu, tuan hua

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

• Performing a fuzzy search may retrieve terms with similar spellings: wing yan can run ((yuan kang) or (((yuan kai) or (tuan vu)))) yang guang min ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wing yan can run ((yuan kang) OR (((yuan kai) OR (tuan vu)))) yang guang min ;.
• Adding a wildcard symbol may retrieve word variants: wing yan can run ((yuan kang) or (((yuan kai) or (tuan vu)))) yang guang min ;*.