This article describes how to access the Trash in Google Docs to retrieve or permanently delete a document. You can follow these steps from a computer or the Google Docs mobile app for iOS or Android.
You can access your items in the trash from both Google Docs and Google Drive. Once there, you can choose to empty the folder or restore files from it. Google automatically deletes documents from the trash after 30 days.
Here's how to do this from a computer.
Open Google Drive. If you already have Google Docs open, you can select the menu button in the upper left corner and choose Drive.