Kagi's advanced search is currently a very important feature for filtering searches, but it follows a traditional approach like Google, consisting of defining rules in text fields, dates in calendars, etc:
I propose introducing artificial intelligence in searches, allowing users to define those same filters using natural language to do it more conveniently, as can be seen in this example image:
The interesting thing would be for everything that advanced search allows to be done also with natural language: search by regions, dates, words, exact phrases, last update, domains, file types.
Even allowing the attachment of files such as images to perform searches based on images, for example, allowing the finding of similar images or finding the same image to see on which domains it is hosted:
The users would find it faster and more natural to request a search filter using human language instead of having to detail it in several fields in the current advanced search modal.