What collection of small dishes often including dumplings is served for snack or lunch in China?

The collection of small dishes often including dumplings served for snack or lunch in China is called Dim Sum.

Dim sum literally translates to "touch the heart" and is a Cantonese tradition that involves sharing a variety of small, bite-sized dishes. While dumplings are a popular item, dim sum includes a wide variety of dishes like steamed buns, pastries, rice dishes, noodles, and more.

It's typically enjoyed as a social activity, with friends and family gathering to share the many dishes and enjoy the flavors of Cantonese cuisine.