Searching is performed by querying the search engine. It will in turn look into the CERN Index which is a database with information about all the known documents and return links to those which match. However, it will typically take 2-4 days between changes done to a given document are correctly reflected in the index. Topics searching The CERN Search Service also includes Topics searching. When you search, you will see that the results contain related topics.
Topics are predefined queries.
For example, the topic Accelerators - CLIC will return all documents containing the word clic . Thus, you are not guaranteed that all documents in a given topic are related. Learn the search syntax. See the help about Ultraseek Infoseek syntax . Put effort into defining search terms.