1. An information processing device comprising: a first word acquiring unit that acquires a first word; a relevant word generating unit that generates a plurality of relevant words associated with the first word acquired by the first word acquiring unit and containing a character string of the first word; a search result acquiring unit that acquires a search result using the relevant word generated by the relevant word generating unit as a search keyword; and a search result information generating unit that generates search result information so as to display the search result acquired by the search result acquiring unit on a screen of a displaying unit in accordance with each of the relevant words, wherein the search result acquiring unit acquires a first search result using the first word as a search keyword and a second search result using the relevant word generated by the relevant word generating unit as a search keyword, and the search result information generating unit generates search result information so as to discriminate and display a search result in which the second search result is removed from the first search result, and the second search result in accordance with the relevant word on the screen of the displaying unit.