When you’re adding a custom word or phrase to be redacted, you’ll notice something called Match Criteria. There are two types of Match Criteria: Words Containing and Words Matching.
Words Containing redacts any words that contain the custom set of characters you enter. This only applies if the custom set of characters you enter is a single word with no spaces. Match Criteria defaults to this.
Words Matching redacts any word in your document that matches the exact, whole word you enter. Words Matching is the only Match Criteria option if you are entering more than one word into the text box.