Elastic query

gistfile1.txt

{
  "sort": [
    {
      "threshold": {
        "order": "desc"
      }
    },
    {
      "last_login": {
        "order": "desc"
      }
    },
    {
      "_score": {
        "order": "desc"
      }
    }
  ],
  "from": 0,
  "track_scores": true,
  "aggs": {},
  "query": {
    "multi_match": {
      "must": [
        {
          "query_string": {
            "use_dis_max": true,
            "fields": [
              "course_name^2",
              "course_type",
              "skills^10"
            ],
            "query": "\"Angular Js\" OR \"Java\" OR \"Angular\" OR \"Js\""
          }
        }
      ]
    }
  },
  "size": 50
}