Perhaps you should try some spelling variations:
yang guang » yan guan, yang liang
yang yang » wang yang, wang yan
yang john » young john, king john, yang jin
john tong » john song, john wong, john bonn
qian yan » qian jun, qian yi
tuan hua » tan hua, tuan vu, yuan hui
hui yang » hui ying, du yang, h yang
tong hui » wang hui

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: ((((qian yan) OR (yang yang))) OR (yang guang)) ((ya hua) OR (tuan hua)) hui yang john tong hui ;~.
• Adding a wildcard symbol may retrieve word variants: ((((qian yan) or (yang yang))) or (yang guang)) ((ya hua) or (tuan hua)) hui yang john tong hui ;*.