Algorithm for autocomplete?

Question

I am referring to the algorithm that is used to give query suggestions when a user types a search term in Google.

I am mainly interested in: 1. Most important resul

Answer 1

There are tools like soundex and levenshtein distance that can be used to find fuzzy matches that are within a certain range.

Soundex finds words that sound similar and levenshtein distance finds words that are within a certain edit distance from another word.