title: Usage of SearchBuilder in NEST ElasticSearch client
body: <p>I was wondering if anyone had any tips or examples for using the SearchBuilder API in NEST. The docs are still kinda sparse.</p>
  
  <p>I am looking to dynamically construct queries/filters based on criteria sent in URL parameters. An example:</p>
  
  <p>www.mydomain.com/things/search?prop1=3&amp;prop2=foo&amp;prop3=bar</p>
  
  <p>And once I extract those I want to build an exact-match query based on the criteria that are present.</p>