Additional horizontal screen space is displayed by hiding the search panel. Use the icon at the top left of the results panel title bar to toggle the state (collapse/expand) of the search panel.
When a search is processed, a new view is generated in the results panel to display the results of the search. The view’s title bar displays the name of the search used to populate it. If a view is already open for a specific search and even if you change the search criteria, the open view will be refreshed with updated search results (that is, a new view is not opened).