If you would like to receive an email notification of any updates to your search results, click on the "Turn on notification for this query" option in the yellow banner when it appears. Once you set up this notification, you will receive a weekly email providing a link to a list of new results.
Any searches you save using the Save Query feature are stored in My Favourites where you can set up an RSS feed, manage notifications, and delete your saved search if necessary.
You may access your saved searches by clicking the pin icon at the top right of the library search page.