Nam Duong Huu

Try this, seems it worked

GET index/_search
{
    "query" : {
        "bool" : {
            "should" : [
                {"terms" : {"firstName": "Nguyen"}},
                {"terms" : {"lastName": "Son Tung"}}
            ]
        }
    }
}

Seems it costs over $1M for a project like this.