Your user account or group membership must have the "Collections: View Collections" permission to view the list of Collections unless your user account has the Make this user a Super Admin setting selected. See the Collections permissions or ask your Administrator for assistance.
Furthermore, your user account or group membership must have the Viewrecord permission from a Collection's configuration to view that Collection's records. See Configure a Collection or ask the manager of that Collection for assistance.
Use the Saved Searches package to save and share search parameters associated with Requests, Tasks and Collections. In doing so, you manage the search parameters for your Saved Searches. You may share your own Saved Searches with other users and/or groups. Recipients of your shared Saved Searches can only use your Saved Search to view its search results, but cannot modify your Saved Searches' parameter settings you configured.