On a search page, users can search for anything in the app with a keyword. The search results are sorted per type.
Go to Pages & Structure, tab Pages and click the + in the table next to Search.
Set the name of the page. This name is displayed in the app bar.
Intro text: this text will be shown when there is no keyword entered yet.
Grouping: choose whether to display each result individually (None) or to group the search results by category (By category). As a search for general keywords could lead to a large number of results, it is recommended to group them.
Categories to search in: uncheck the types you want to exclude from the search results.