Joomla site search does not display the words and pages created with SP Pagebuilder

Sure, on a web page created with SP page builder that contains for example the keyword "matematica" in both content and url, if I do a search on the site the page does not appear (if I change to another word contained within the page, there is no indexing of the page). Attached the screenshots

Update, we have see a plugin called "Search - SP Page Builder" and we have enable it, but the problem persist, searching for a word contained in the page returns no results

thank you, we followed the first link (the second one gives 404 error), basically the search works only with words contained in the SP Pagebuilder page TITLE, while the search does not work for keywords contained within the page