This article explains how to use the global search to find anything in your instance.
How to Use
First, find the global search input at the top of the screen:
In the search aside that appears, type in your search query. After entering in 3 characters, the results will begin to display:
The query will search the entire instance and present the results organized by objects -- user profiles, groupings, audience segments, and library files -- including their avatar, object name, and relevant categorization, if any. You can also take action(s) against any results based on your user permissions with that object.