The "love story" keyword is not arbitrary. It works exceptionally well for three reasons:
intitle:index.of is a Google search operator (also works on Bing, DuckDuckGo, etc.). It tells the search engine to look for web pages that have the exact phrase index of in their HTML title tag. intitle index of mkv love story
When combined with a file type (.mkv) and a keyword (love story), the query: The "love story" keyword is not arbitrary
intitle:index.of mkv love story
…aims to find directory listing pages on public web servers. These pages are often generated automatically by web servers (like Apache) when no index.html file exists. They show a raw list of files and folders stored on that server. …aims to find directory listing pages on public
Rather than navigating the murky waters of open directories and potential malware, users are encouraged to use legal and secure methods to watch movies.
The term is broad. You could find: