A computer-implemented method may include receiving, from a device, a search query that includes search terms, parsing the search terms into combinations of search terms, where each of the combinations includes one or more adjacent search terms, determining whether a hierarchical relationship exists for the one or more adjacent search terms of each of the combinations, generating one or more interpretations for each of the combinations based on whether the hierarchical relationship exists for the one or more adjacent search terms, performing a search based on at least one of the one or more interpretations to identify search results, generating a search result document containing the search results, and providing, to the device, the search result document.