title: no [query] registered for [filtered]
body: <p>I have a query which I need to filter out results.</p>
  
  <p>This is my query</p>
  
  <pre><code>{
      "query": {
          "filtered": {
              "query": {
                  "multi_match": {
                      "default_operator": "AND",
                      "fields": [
                          "author",
                          "title",
                          "publisher",
                          "year"
                      ],
                      "query": "George Orwell"
                  }
              },
              "filter": {
                  "terms": {
                      "year": [
                          1980,
                          1981
                      ]
                  }
              }
          }
      }
  }
  </code></pre>
  
  <p>I get an error saying <code>no [query] registered for [filtered]</code>. I clearly have a query for the filtered field. I am following the format given in the filtered query documentation on the elasticsearch page.
  <a href="https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-filtered-query.html">https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-filtered-query.html</a></p>