title: solr how to get most nearest match of title
body: <p>For example I want to search "adidas Bright Pink Sleeve Free Shirt"
  the result set should be in the following order
  the top result should be the product having above name with exact match.
  then products with partial match of the query 
  then products with any of the match.</p>
  
  <p>the solr schema has following fields
  product_name, 
  brand, 
  category.</p>