INFORMATION SEARCH METHOD AND DEVICE

PROBLEM TO BE SOLVED: To increase possibility that when a plurality of search keywords include modifiers, a detection result which is desirable for a searcher is obtained under the consideration of their modification relation (manner of how to modify).SOLUTION: Disclosed is an information search device including: determination means for, when a plurality of keywords are input, determining the priority of a modification relation using the plurality of keywords on the basis of the input configurations or input order of the plurality of keywords; and output means for searching and outputting information relating to the plurality of keywords from a search object on the basis of the recognized priority.