Doctrine and LIKE query

This is not possible with the magic find methods. Try using the query builder:

$result = $em->getRepository("Orders")->createQueryBuilder('o')
   ->where('o.OrderEmail = :email')
   ->andWhere('o.Product LIKE :product')
   ->setParameter('email', 'some@mail.com')
   ->setParameter('product', 'My Products%')
   ->getQuery()
   ->getResult();