Search in the Tools module - Manage auto correction data

In this dialog you'll find all of the data for auto-correcting. This is identified by the search as soon as users exceeds a certain amount of false entries which you have specified here. Click on Remove entry to remove an entry from the list.

At the top of the dialog, click on Add to add additional fields for terms that the list should filter. Click on Delete filter to remove a filter field.

Click on Reset changes to restore the list's original state.