Rated 5 out of 5 stars

One more thing, what does "word distance" mean?

This review is for a previous version of the add-on (  This user has a previous review of this add-on.

Hope I will find some time this week to repair few things.
I'll change this description to something more verbose and informative.
The current version version of the algorithm is more or less like this: while you type it searches all possible results distant less or equal to this value ("word distance").
Used metric counts all deletions, insertions, substitutions and transpositions of any two adjacent characters (e.g. distance(tset, test) = 1).