To provide an information search device, a computer program for searching information and an information search method for simply providing a broad range of information with brevity to a user. A search condition extraction unit extracts search conditions of a user from inputted information, a search condition loosing unit looses the search conditions of the user and thus creates loosed search conditions, a search control unit performs a search based on the loosed search conditions and outputs search results, a search evaluation unit adds divergence degrees to the search results by use of the search conditions of the user and evaluation data for evaluating the search results, and thus outputs the search results, and a variation result output unit classifies the search results added with the divergence degrees by use of classification criterion data for classifying the search results on the basis of the divergence degrees, selects the search result from among the classified search results and thus outputs the search result. Then the present invention performs a search based on not only a condition which user talks explicitly but also a condition which takes an analogized implicit request into consideration.