Perhaps you should try some spelling variations:
yan gong » yan cong, xian gong, gang gong
yang jie » yang jin, yang xi, yang jun
yang jui » yang judy, yang xi
nan yan » nan ya, wang yan, qian yan
gong di » dong di, gong si, long did
di gene » i gene, di genere, di atene
yang yi » yang xi

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: nan yan gong di gene ((((yang jie) OR (yang jui))) OR (((yang yi) OR (yang di)))) cong shu ;~.
• Adding a wildcard symbol may retrieve word variants: nan yan gong di gene ((((yang jie) or (yang jui))) or (((yang yi) or (yang di)))) cong shu ;*.