4 Ways to Search Files

Search Method	Description
4 Ways to Find What You're Searching for!
Plain-text Search for an exact spelling.	What you type in for searching is taken literally.
Regular Expression Search for variations of a word.	What you are searching for is taken as a Regular Expression, a "formula" for finding words. if expression symbols such as “[]+?” are in the text you are trying to find.
Approximate Search for words you know only approximately, or words that may be misspelled.	What you type in for searching is taken literally, but errors, or discrepancies, are allowed in the text that is matched. You set the number of errors to allow.
Sound-alike Search for words that are anything like what you want to find.	What you are searching for is reduced internally to four characters that represent its “sound.” Text in files is matched to this sound.