Indexed Search
1.1.3. Features of the search frontend (the plugin)
The search interface has several options for advanced searching. Any of those can be disabled and/or preset with default values:
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Searching whole word, part of word, sounds like, sentence
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Logical AND and OR search including syntactical recognition of AND, OR and NOT as logical keywords. Furthermore sentences encapsulated in quotes will be recognized.
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Searching can be targeted at specific media, for instance searching only indexed PDF files, HTML-files, Word-files, TYPO3-pages or everything
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The engine is language sensitive based on the multiple-language feature of TYPO3's CMS frontend.
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Searching can be performed in specific sections of the website.
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Results can be sorted descending or ascending and ordered by word frequency, weight, location relative to page top, page modification date, page title, etc.
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The display of search results can be intelligently divided into sections based on the internal page hierarchy. Thus results are primarily grouped by relation, then by hit-relevance.
This shows the full range of default options for "advanced search":
Warning
The search frontend plugin is optimized for features, not speed. Especially it will be slow on a website with many pages in the page tree because it traverses the whole tree each time to build a list of accessible pages. However you can circumvent this by modifications to the search plugin so it does not check page access based on the id-list. But then you loose that feature of course. Can't have both.
In any case; The indexing of pages and searching the indexed information are two different processes and therefore you can easily use another frontend plugin for making searches in the same data for whatever reason you might have for discarding the default search plugin.