The other day I coded up a “Fuzzy Search” function for osCommerce. One of my clients on osCmax wanted the same, so with a few changes (to accomodate the crap & outdated & bloated code in osCmax2.5.2) it is now done;
Searching for Matrix (did they mean Matrox ?);
Searching for Matrox (did they mean Matrix ?);
Searching for Matrex (did they mean Matrix or Matrox ?);