Trying to find chinese acapella folk/tradition song or poetry

Impossible to find, tried everywhere. How come there's nothing? Not a single traditional chinese song in acapella, I'm shocked with such an ancient civlization and so many people to find nothing like this.

Example: Yi Jian Mei - Vocals Only Acapella (xue hua piao piao bei feng xiao xiao)

thanks for you attention and suggestions.