Issue with EdgeNGramFilterFactory filter class and multiple diactric character in a word <p>I have indexed BLÅBÆRSOMMEREN into Solr and I have added EdgeNGramFilterFactory filter class like this: </p> <pre><code>&lt;fieldType name="nGramtext" class="solr.TextField" positionIncrementGap="100"&gt; &lt;analyzer type="index"&gt; &lt;charFilter class="solr.HTMLStripCharFilterFactory"/&gt; &lt;charFilter class="solr.MappingCharFilterFactory" mapping="mapping-ISOLatin1Accent.txt"/&gt; &lt;tokenizer class="solr.StandardTokenizerFactory"/&gt; &lt;filter class="solr.StopFilterFactory" ignoreCase="true" words="stopwords.txt" /&gt; &lt;filter class="solr.LowerCaseFilterFactory"/&gt; &lt;filter class="solr.EdgeNGramFilterFactory" minGramSize="3" maxGramSize="15" /&gt; &lt;filter class="solr.EdgeNGramFilterFactory" minGramSize="3" maxGramSize="15" /&gt; &lt;filter class="solr.PorterStemFilterFactory"/&gt; &lt;/analyzer&gt; </code></pre> <p>Now, if I search with whole word: <strong>BLÅBÆRSOMMEREN</strong> it gives me result, but if I search with <strong>BLÅB or BLÅBÆRSOMM</strong> it does not give me result. Note I have perform edismax query on this field</p> <p>As per the documentation <a href="http://wiki.apache.org/solr/AnalyzersTokenizersTokenFilters#solr.EdgeNGramFilterFactory" rel="nofollow">here</a> I guess, it should work with all these words but it does not.</p> <blockquote> <p>I have integrated Solr for an eCommerce Site. Initially I have configure that word in Name field and it won't work. Then I have configured that word in Short Description field only(Removed from Name).</p> </blockquote> <p>After this I have performed query and it works. Note: both fields have same field type.</p> <pre><code> &lt;field name="Name" type="text" indexed="true" stored="true" required="false" /&gt; &lt;field name="ShortDescription" type="text" indexed="true" stored="true" required="false" /&gt; </code></pre> <p>Moreover, there are copyfield like: </p> <pre><code>&lt;copyfield source="Name" dest="nGramContent"/&gt; &lt;copyField source="ShortDescription" dest="nGramContent"/&gt; </code></pre> <p>What I did wrong here? Please help! How can I achieve this?</p>