LSE uses Funnelback as the search facility for the LSE website. Funnelback indexes the LSE website. Submitting a query - word, phrase or question - returns a list of results - pages and documents matching the query - which are sorted by relevance. In addition to this standard search function, Funnelback allows the results to be refined by type, topic, site and file type. This refinement allows results to be more closely associated with the original query thereby aiding discovery of the sought for pages/documents or awareness of their absence from the site.
For more information, see Funnelback.