final FunctionScoreQueryBuilder functionScoreQueryBuilder = QueryBuilders.functionScoreQuery(queryBuilder,
                flist.toArray(new FunctionScoreQueryBuilder.FilterFunctionBuilder[flist.size()]));

        functionScoreQueryBuilder.boostMode(CombineFunction.REPLACE);
        functionScoreQueryBuilder.scoreMode(FunctionScoreQuery.ScoreMode.MULTIPLY);

        return functionScoreQueryBuilder;
    }

    /**

        if (!excludeWords.isEmpty()) {
            queryBuilder.mustNot(QueryBuilders.termsQuery(FieldNames.TEXT, excludeWords));
        }
        final FunctionScoreQueryBuilder functionScoreQueryBuilder = QueryBuilders.functionScoreQuery(queryBuilder,
                ScoreFunctionBuilders.fieldValueFactorFunction(FieldNames.QUERY_FREQ).missing(0));
        functionScoreQueryBuilder.boostMode(CombineFunction.REPLACE);
        return functionScoreQueryBuilder;