Elastic Search query to get the list of documents with some minimum occurrence of a property

[pranay_jain]

I have a index with documents like this

[
 {
   "customer_id" : "123",
   "country": "USA",
   "department": "IT",
   "creation_date" : "2021-06-23"
   ...
 },
 {
   "customer_id" : "123",
   "country": "USA",
   "department": "IT",
   "creation_date" : "2021-06-24"
   ...
 },
 {
   "customer_id" : "345",
   "country": "USA",
   "department": "IT",
   "creation_date" : "2021-06-25"
   ...
 }
]

I want to get the list of all documents from specific country e.g USA, between a give time range with at least 2 occurrences of same customer_id. With the above data, it should return

[
 {
   "customer_id" : "123",
   "country": "USA",
   "department": "IT",
   "creation_date" : "2021-06-24"
   ...
 }
]

Now, I tried the below ES query

POST /index_name/_search
{
  "query": {
    "bool": {
      "must": [
        {
          "range": {
            "creation_timestamp": {
              "gte": "2021-06-23",
              "lte": "2021-08-23"
            }
          }
        },
        {
          "match": {
            "country": "USA"
          }
        }
      ]
    }
  },
  "aggs": {
    "customer_agg": {
      "terms": {
        "field": "customer_id",
        "min_doc_count": 2
      }
    }
  }
}

The above query returns following result

"hits" : {
    "total" : {
      "value" : 10000,
      "relation" : "gte"
    },
    "max_score" : 1.5587491,
    "hits" : [...]
    ]
  },
  "aggregations" : {
    "person_agg" : {
      "doc_count_error_upper_bound" : 1,
      "sum_other_doc_count" : 1,
      "buckets" : [
        {
          "key" : "customer_id",
          "doc_count" : 2
        }
      ]
    }
  }

I don't need the list of buckets in response, but only the list of documents satisfying the condition. How can I achieve it? The documents in the hits section in the response doesn't match with the data in the aggregation bucket.