Fuzzy search: Increase search distance

[alihamandi]

add fuzzy search to make it more accurate

[patriksvensson]

There already is fuzzy search using Levhenstein distance. We're only fuzzying for a distance of one (so you can write "kode" instead of "code", but not "klde").

I can take a look at if we can increase the distance for this or make it configurable. Problem is that allowing "more fuzzy" searches also requires more processing power.