Why can't I find a part-time job in Nanjing Studio?

I know Jiangning has art studios, Danqing studios and classic studios. Art studio mainly focuses on art college entrance examination training, and it seems that high school does not recruit part-time teachers. Later, one of my classmates worked as a part-time teaching assistant in the children's department, while Dan Qing only worked in the children's department and often recruited part-time teaching assistants. The head of the classic studio is a woman. It seems that their photos are part-time teachers. You can search and contact them again.