Not learning per se but cells do communicate: https://en.wikipedia.org/wiki/Cell_signaling so some evasion techniques from one tumor or one cancer cell can propagate to others through various signaling pathways when applicable.

Basically a cancer cell might start shouting "yo bro you should totally try this..." and other cells that receive the signal and capable of doing that action might just happen to try it, in fact in some case this is just how you get cancer, one cell starts yelling chug chug chug and all the other cells around it get hammered.