Search results: how to delete google history

google is now a popular account, when you can use gmail or other applications such as google drive, google docs, etc. through your google account.

usually to clear google history, we will only access the web browser and go to history, choosing to delete all search results. but are you sure that those results have been

for some reason you no longer want to use your existing google account, and want to completely delete them. so how can you permanently delete your google account?