Google-like exact match using multi_match

[alimci]

Hi there,

I wanna to create google-like exact match query by multi_match query.
My desired result is followed by this query.

"bool": {
  "should": [
    {
      "query_string": {
        "query": "string \"exact match string\" +\"necessary exact match string\"",
        "fields" : [
           "field1",
           "field2",
           "field3",
        ],
        "default_operator": "OR"
      }
    }
  ]
}

1. Is it possible to get result by using multi match query without splitting query to separated parts?
2. What's similar query to this query by using multi_match? (separated or not)

Thanks.