You don’t find these pages by searching normally. Instead, you use "Google Dorking"—advanced search strings that filter for server-generated text. To find an open directory for a specific topic, you might use: intitle:"index of" "keyword" intitle:"index of" mp3 "artist name" "index of /" +pdf "search term"
(special search commands) to find open directories containing public books, software, or media. For example, searching intitle:"index of" "pdf" index of files link
