Hello, I am new to Houdini, I am switching from C4D. I have a question about Voronoi. I made a piece of mesh with Voronoi, and I want to make pieces floating with noise. I couldn't find any set up to do this in the internet.

Try videos on YouTube. Search for Combining Solvers With a Multi-Solver in Houdini(Short & Sweet 3D)..One of the ways.
or
https://diffusefx.com/blog/ [diffusefx.com]