gistfile1.json

{
    query: {
        bool: {
            must: [
	            {
	                query_string: {
	                    default_field: "_all",
	                    query: "\"lord of the rings\""
	                }
	            },
	            {
	                query_string: {
	                    default_field: "_all",
	                    query: "tolkien"
	                }
	            }
            ],
            must_not: [
	            {
	                query_string: {
	                    default_field: "_all",
	                    query: "hobbit"
	                }
	            }
            ]
        }
    }
}

Search nerd.