When searching for a device that has a different Name and Alias, we are unable to find it by searching for its name but we can find it if searching for its alias
Either the user has configured Item Name Display Setting to show Use Item Name Alias in their User Settings or the Role Right View Item Name Alias Only is configured for the user's assigned role.
From the documentation, Role Rights:
Release : 20.2.x
To view/alter your User Settings: Customize Your User Settings
To view/alter a Roles configured rights: Manage Roles