A method performed by an electronic device is provided. The method includes receiving, by the electronic device, a search word from a user, estimating, by the electronic device, a keyboard layout of a keyboard utilized for inputting the search word, selecting, by the electronic device, an index word in which a distance to the search word is less than a threshold value, on the basis of the keyboard layout, obtaining, by the electronic device, a search result corresponding to each of the index word and the search word, and returning, by the electronic device, the search result in response to the search word.