The Search by username text box (see the following figure) on the User Management page allows you to search for a user by a username or a keyword. You can type any alphabetic character, numeric value, or symbol (such as @, &, or # for example), or a combination of them in the search box. The search is not case-sensitive. By default, the search result will return all usernames that match the keyword or letter(s) entered and display them on the page.
The Search for Users Text Box
The Search by username search box.