* @return The SuggestDeleteResponse
     */
    public SuggestDeleteResponse deleteByQuery(final String index, final String queryString) {
        return deleteByQuery(index, QueryBuilders.queryStringQuery(queryString).defaultOperator(Operator.AND));
    }

    /**
     * Deletes suggest items by a query builder.
     *
     * @param index The index name
     * @param queryBuilder The query builder