Bool search with MUST for nested, nested string

[YeeP]

Here is a example of what I am trying to run, the last query is the one in question

GET sev_incidents/_search
{
    "query": {
      "bool": {
        "must": [
          {
            "query_string": {
              "query": "** AND open:false",
              "fields": [
                "number"
              ]
            }
          },
          {
            "query_string": {
              "query": "*Amazon*",
              "fields": [
                "company"
              ]
            }
          },
          {
            "nested": {
              "path": "update.sites",
              "query": {
                "query_string": {
                  "query": "\"ALBANY,GA\" AND \"AFNI (Bloomington IL)\"",
                  "fields": [
                    "update.sites.name"
                  ]
                }
              }
            }
          }
        ]
      }
    }
}

With the addition of the third query, this search fails. The data structure for update.sites is:

 [
                {
                  "name": "ALBUQUERQUE",
                  "sys_id": "d6c04e140f92b500d55ae498b1050e25"
                }
 ]

We need to be able to search for multiple sites that all "must" be part of the search. Any help would this would be much appreciated.

Thank you,
Ryan