A method, computer program and system for performing a find and replace editing operation of a text starting from a couple of initial find and replace expressions provided by the user, applying each rule defining admissible inflected forms of the initial find expression and the initial replace expression, to the initial find and replace expressions to identify all the derived couples of find and replace expressions. The find expression and the replace expression of the derived couples correspond to inflected forms of the initial find and replace expressions. Then, for each match in the text of the find expression of the derived couples, proposing to the user the derived couples for replacement in the text.