Approximate search results?

[antpalmer]

Hi (new here)
I've been using everything for a while now and wondered if there's some form of approximate search to account for typos.
I read some threads suggesting levenshtein/cosine distance and the like but I'm not sure that's what I'm looking for.

For example,
Sometimes I accidentally type "stea," instead of "steam". Or "eamcs" instead of "emacs". Is there some setting that I can use to have everything account for this?

[void]

A 'did you mean xxx?' dictionary lookup is on my TODO list.
For example: type in

stea,

A dropdown bar is shown under the Search box: did you mean steam? [Yes | No | Close]

A levenshtein distance search is on my TODO list.
However, results will have to be sorted by rank. (too much noise otherwise)

Thank you for the suggestion.

[antpalmer]

Thank you! Is there some way I could work on this in the form of an extension? It sounds fun!

[void]

Thank you for your offer to help.

Extensions are not designed to do this yet.