After successfully logging in, you will be brought to the user interface. The modules highlighted in the screenshot below will help you use different features available for your devices, assets, users, accounts, and groups:

At the top right of the screen is a Global Search field that enables you to search a variety of areas in CTC. 

Type in your search request and press Enter.

This will open the Search Results window, which will show the matching results in the categories Accounts, Users, Assets by Name, Assets by VIN, Devices, and Groups by Name.