我做了这个例子，也许能帮你入门。

POST idx_test/_doc
{
  "name":"HELLO MISTER"
}

POST idx_test/_doc
{
  "name":"HELLO MISTER PAUL"
}

GET idx_test/_search
{
  "query": {
    "bool": {
      "should": [
        {
          "match": {
            "name": "HELLO MISTER"
          }
        },
        {
          "term": {
            "name.keyword": {
              "value": "HELLO MISTER",
              "boost": 2
            }
          }
        }
      ]
    }
  }
}

回应

"hits" : [
  {
    "_index" : "idx_test",
    "_type" : "_doc",
    "_id" : "XiH664YB1-vHHCnRzwwF",
    "_score" : 0.8630463,
    "_source" : {
      "name" : "HELLO MISTER"
    }
  },
  {
    "_index" : "idx_test",
    "_type" : "_doc",
    "_id" : "JBX664YB3mDFYoZj1MyG",
    "_score" : 0.5753642,
    "_source" : {
      "name" : "HELLO MISTER PAUL"
    }
  }
]

}