Unable to hide a quick action tile using EL Expression

We want to hide the action- Request a position change for a particular roles, say Role 1 and Role 2
We are using an EL expression with which it is being hidden for 1 role but not for the other. Access could be coming from some other roles that person might have. Now, if we try to use the combination of roles in the expression, its still not working. Any suggestions on how to correctly use the EL expression in such a case