Thank you very much for the proper details and screenshots.
The problem is that those elements are not individual post type objects, they are simply a text part of the page. From the plugins perspective it is not possible to distinguish elements on a single page, it has to be stored in the database as post/page or any other custom post type. If there was some sort of service page or post assigned with those elements, it would be possible to return those as results. I see it is pointing to an attachment, if you enable attachments as results, it should find it, however with the attachment title and description, as that is the one stored in the database with the attachment.Best,
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