Search patterns can include wildcards. Results will show the matches in context.
Search for the word "test":
3 matches Authentication ... to gain access to your KeyServer is called authentication. Once the user has passed the required test (e.g., typed the proper password), the user is authenticated. A user is not authenticated if they fail to satisfy some requirement of the active authentication method (e.g., fail to type an ...
Click on the left link, "3 matches", to see the context for all the hits within the document.
Click on the right link, "Authentication" (document name) to see the entire document without matches highlighted.
Matches for a search are typically found in multiple documents, and perhaps multiple times in each document. Textual context for the first hit in each document is displayed for each document — the actual match is highlighted.