Click on it. In the box below, list the 2 indications for Celebrex. When you are interested in exploring a subject, but you don't know any specific sites to start with, you can use a search engine . A search engine is a software program that goes out on the web, seeking web sites and cataloging them. Search engines constantly visit sites on the web to create a catalog of web pages and keeps them current.
Many search engines support the use of Boolean logic.
Hotbot is one search engine that supports the use of Boolean logic. In this next example, we are looking for herbal alternatives to Viagra . We want to find records that combine all three terms, Viagra and herb and alternative . In this diagram, the resulting list are those records falling into the purple intersection of the 3 circles. Every time you add another search term, and another AND, your result list will be smaller.