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"Microsoft\u2019s Live Search product has rolled out two enhancements to try and better understand user input to return improved results: AutoSpell and Stemming.  The AutoSpell feature recognizes common misspellings and returns them in the results, rather than the Google approach of asking you \u201Cdid you mean McDonalds?\u201D if you enter \u201CMacDonalds\u201D as your search term.  Thus, Live Search saves you one page of further digging.  \nThe second enhancement, stemming, looks at the root of the word rather than the exact word to try and include more relevant results.  As an example, the Live Search team says a search for \u201Chalf price book\u201D will now include the same results as \u201Chalf price books.\u201D  Meanwhile, you can still use quotes around your term for situations where an exact match is more appropriate.\nOverall, these are logical enhancements that should help improve Live Search results, so thumbs up to the Microsoft team."^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2007/10/24/live-search-2/>