Hibernate full text search matching

I have two users with name 'Alex' and 'Andrei'. When i write query like 'A', I get 0 results. I have to search with the full name and matching capitalization to get a result.

I want for example just query for 'e' end receive 2 records.

    Session s = session.getCurrentSession();

    FullTextSession fullTextSession = Search.getFullTextSession(s);

    QueryBuilder qb = fullTextSession.getSearchFactory()
            .buildQueryBuilder().forEntity(User.class).get();
    org.apache.lucene.search.Query q = qb
            .keyword().onFields("name")
            .matching(query)
            .createQuery();

    org.hibernate.Query hibQuery =
            fullTextSession.createFullTextQuery(q, User.class);

    List<User> results = hibQuery.list();