Как построить запрос в QueryBuilder'е по частям?

$qb = $this->createQueryBuilder('p');
        $qb->leftJoin(Entity1::class, 'a', 'WITH', 'p.id = a.id')
            ->leftJoin(Entity2::class, 'fp', 'WITH', 'p.id = fp.id')
            ->leftJoin(Entity3::class, 'vm', 'WITH', 'p.id = vm.id');

        $expressionBuilder = new Expr();

        $expressions[] = $expressionBuilder->orX(
            $expressionBuilder->isInstanceOf('p', Entity1::class),
            $expressionBuilder->isInstanceOf('p', Entity3::class),
            $expressionBuilder->andX(
                $expressionBuilder->isInstanceOf('p', Entity2::class),
                $expressionBuilder->eq('fp.displayed', ':displayed')
            )
        );

        $qb->andWhere($expressionBuilder->andX(...$expressions));

        $qb->andWhere('p.active = :active')
            ->setParameter('active', true)
            ->setParameter('displayed', true)
            ->andWhere('p.publishedAt < CURRENT_TIMESTAMP()');

        $qb->setMaxResults($limit)
            ->setFirstResult($offset)
            ->orderBy('p.publishedAt', 'DESC');

        return $qb->getQuery();