The present invention relates to a method, an apparatus, and a computer-readable recording medium for improving at least one semantic unit set by using a phonetic sound. The method for improving a set including at least one semantic unit, in which the set including at least one semantic unit is a captured semantic unit set, includes: receiving an improvement phonetic sound according to utterance of a user; specifying an improvement semantic unit set on the basis of the improvement phonetic sound; specifying a semantic unit set as a target to be actually improved within the captured semantic unit set, as a matched semantic unit set, on the basis of correlation thereof with the improvement semantic unit set; and replacing the matched semantic unit set within the captured semantic unit set with the improvement semantic unit set.