With Search behavior settings, you can customize How your search returns results. Search suggestions can help customers articulate and refine their search queries, and provide new ways for them to explore an online store. They can also let customers quickly browse matches without having to leave their current page to see a separate list of search results.
From Theme Settings -> Search behavior
Enable search suggestions: Online Store includes predictive search, which shows suggestions when customers start typing into the search field.
Show product vendor: Visible when search suggestions enabled.
Show product price: Visible when search suggestions enabled.
Enable search fullwidth: If you disable this option, search screen will return to widget sidebar.
Quick link: You can add menu to search screen, it will show at the beginning.
Products suggest: You can add suggest products to search screen, it will also show at the beginning.