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The search engine searches the full text of titles. All search results are relevancy ranked not only by the number of occurrences of the search term, but also by their location. Results found in chapter titles and section headings are given greater weight than occurrences in the body of the text. Not only are titles listed in relevant order, but section hits for each title are also relevancy ranked, presenting the top three hits for single-click access right to the content.

You may specify words or phrases alone or grouped in Boolean combinations (phrases are words enclosed in quotation marks). The search engine is not case sensitive. The following are examples of valid search expressions:

java JAR files: A word proximity search. Content with the words closest together are ranked higher.
"java JAR files": An exact phrase search. Content must match the phrase exactly to be part of the search results.
java AND (JAR OR files): A Boolean expression. Boolean operators are AND, OR and NOT.
"JAR files" near beans: A proximity expression. Content containing the exact phrase with words nearby are ranked higher.
database perf*: A word truncation expression. The * is a wildcard character.

Restricting the search to specific sets of titles can further enhance results. A search can be limited to:

Any of the predefined topics: Select a main topic or subtopic and then choose 'Search' from the Main Menu. Enter search term(s) and before clicking 'Search', change the search domain in the pull-down to 'Last Title List' to search only titles in that subtopic.
A list of titles from a previous search: After completing a search, choose 'Search' from the Main Menu. Enter a new search term(s) and before clicking 'Search' again, change the search domain in the pull-down to 'Last Title List' to search only titles in the previous results list.
A specific title: On any content page of a title, choose 'Search' from the Main Menu. Enter your search term(s) and before clicking 'Search', change the search domain in the pull-down to 'Last Title' to search only this title. Or, navigate to the title's Table of Contents and enter your search term(s) into the 'Search this title:' box.