On my web site there is a (self-coded) search functionality that searches through the web site's specific contents. However I'd like to display one banner in addition to the site's results, showing ads relevant to the entered search terms. Can I do this e.g. with Google Ads? I want the ads to be based only on the search terms from the user, not the rest of the site's content, so there has to be a possibility to pass these search terms to the ad provider and get a banner based on these search terms.