settings.json

{
  "settings": {
    "index": {
      "number_of_shards": "1",
      "number_of_replicas": "0",
      "analysis": {
        "filter": {
          "word_delimiter_filter": {
            "type": "word_delimiter",
            "preserve_original": "true"
          },
          "en_stop_filter": {
            "type": "stop",
            "stopwords": [
              "_english_"
            ]
          },
          "truncate_filter": {
            "length": "256",
            "type": "truncate"
          },
          "en_stem_filter": {
            "name": "minimal_english",
            "type": "stemmer"
          },
          "asciifolding_filter": {
            "type": "asciifolding",
            "preserve_original": "true"
          }
        },
                      "default" : {
              "filter" : [
                "truncate_filter"
              ],
              "type" : "custom",
              "tokenizer" : "keyword"
            },

        "analyzer": {
          "fulltext": {
            "filter": [
              "word_delimiter_filter",
              "lowercase",
              "en_stop_filter",
              "en_stem_filter",
              "asciifolding_filter"
            ],
            "char_filter": [
              "html_strip"
            ],
            "type": "custom",
            "tokenizer": "standard"
          }
        }
      }
    }
  }
}