I am doing a bit of search engine. One of the features is an attempt to correct spelling in nothing is found. I replace the following phonetic sequences: ph<->f, ee <-> i, oo<->u, ou<->o (colour<->color). Where I can find a full list of things like that for English? Thank you.
You might want to start here (Wikipedia on Soundex) and then start tracing through the "see also" links. (Metaphone has a list of replacements, for example.)