How can I make search with a substring of a word?
Add ngramfilter to text type definition in schema.xml in solr config directory.

&lt;fieldType name="text" class="solr.TextField" positionIncrementGap="100"&gt;
  &lt;analyzer type="index"&gt;
    &lt;filter class="solr.EdgeNGramFilterFactory" minGramSize="3" maxGramSize="25" /&gt;