You can do this with the MoGraph Fracture Object. One caveat: the Fracture Object consumes a lot of RAM and cpu cycles, so you might not be able to use it if your text contains a very large number of polygons. Generally speaking, a few thousand is doable. Above that it depends on how much ram and horsepower you have at your disposal. Save first!
To make things easier, select all the text objects and connect them into one object. Delete the originals.
Then go into polygon mode, select all, and run Functions>Disconnect, with the “preserve groups” box UNchecked.
Now create a fracture object and make it the parent of the text object in the object manager. Go to the fracture object’s “object” tab and set the mode to “explode segments”.
With the fracture object still selected, create a MoGraph Random Effector. In the effector’s “effector” tab, set the random mode to “noise” and check the “indexed” box.
Now it’s just a matter of adjusting the noise properties and the position distance in the parameter tab … assuming you haven’t crashed your computer. 😉