In doing so, it draws upon the knowledge accumulated in its index and some simple strategies to bias the search toward interesting material. In this sense, it is a lot like the Fish search, although it operates network-wide. It is a testbed for experimenting with Web search strategies. It is easy to plug in a new search strategy, or ask queries from afar, using a special protocol. Small database and retrieval system must be still developed.
Different operators don t always work very well.
In many simple, broad topic searches, relevant home pages appear at the top of the result list.