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    <p>Sounds like you want the DisMax "minimum match" parameter. I wrote a blog article on the concept here a little while: <a href="http://blog.websolr.com/post/1299174416" rel="nofollow">http://blog.websolr.com/post/1299174416</a>. There's also the <a href="http://wiki.apache.org/solr/DisMaxQParserPlugin#mm_.28Minimum_.27Should.27_Match.29" rel="nofollow">Solr wiki on minimum match</a>.</p> <p>The "minimum match" concept is applied against all the "optional" terms in your query -- terms that aren't explicitly specified, using +/-, whether they are "+mandatory" or "-prohibited". By default, the minimum match is 100%, meaning that 100% of the optional terms must be present. In other words, all of your terms are considered mandatory.</p> <p>This is why your longer query isn't currently matching documents containing shorter fragments of that phrase. The other keywords in the longer search phrase are treated as mandatory.</p> <p>If you drop the minimum match down to <code>1</code>, then only one of your optional terms will be considered mandatory. In some ways this is the opposite of the default of 100%. It's like your query of <code>quick brown fox…</code> is turned into <code>quick OR brown OR fox OR …</code> and so on.</p> <p>If you set your minimum match to <code>2</code>, then your search phrase will get broken up into groups of two terms. A search for <code>quick brown fox</code> turns into <code>(quick brown) OR (brown fox) OR (quick fox) …</code> and so on. (Excuse my psuedo-query there, I trust you see the point.)</p> <p>The minimum match parameter also supports percentages -- say, <code>20%</code> -- and some even <a href="http://lucene.apache.org/solr/api/org/apache/solr/util/doc-files/min-should-match.html" rel="nofollow">more complex expressions</a>. So there's a fair amount of tweakability.</p>
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