Because Google Drive links are usually private or restricted to specific people, search engines often can't "see" what's inside them unless they are set to "Public" or "Anyone with the link." If you have a link to this file, you can try:
Make sure you are logged into the Google account that has access. Clip 18:) - Google Drive
If you see an "Access Denied" screen, use the button on that page to ask the owner for permission. Because Google Drive links are usually private or