The phrase identifies a targeted search instruction. It instructs a search engine to locate files of a specific type, namely PowerPoint presentations, that may also relate to artificial intelligence. The double question marks signify a desire for further refinement, implying the searcher seeks information on a very specific, yet undefined, aspect of the intersection between these two subjects. An example would be searching for PowerPoint presentations discussing AI applications in business, but the precise application is unknown to the searcher.
The practice of narrowing searches by specifying file types and keywords is beneficial for efficient information retrieval. It helps users avoid irrelevant results and quickly access the desired content. In the context of rapidly evolving fields such as artificial intelligence, the ability to filter results by file type and add further search terms (indicated by the question marks) facilitates targeted research and learning. This structured approach saves time and allows for a more focused investigation of specific topics.