: intitle:"index.of" (mp4|mkv|avi) "movie name"
In simple terms:
If you find a massive directory and want the whole collection, don't click one by one. Use a like JDownloader 2 or the "DownloadThemAll!" browser extension. Simply paste the parent directory link, and it will scrape all video files for you automatically. If you'd like to dive deeper, let me know: index of parent directory movies best