WebCrawler indexes are built both by user submissions and by a web crawler program. Boolean operators, nested logic, proximity operators and bound phrases are all supported in search queries. A formless search option is also available. Search indexes are built primarily by user submissions and supplemented by a web crawler. Proximity searches can be done on bound phrases.
Prefixes allow search terms to be specifically required or excluded from the result.
The Lycos search engine was originally developed at Carnegie Mellon University but is now independent. Lycos also provides topical guides accessible from its search form pages. The distinction between these services is not clear. The engine does not permit the use of Boolean operators or nested search logic and has no mechanism for direct proximity searching using bound phrases or proximity operators. In the search box, type in what you want to find.