nHibernate方法，使用条件来选择其子级集合中的字符串包含某个搜索词的父母

<?xml version=\"1.0\" encoding=\"utf-8\" ?>
<hibernate-mapping xmlns=\"urn:nhibernate-mapping-2.2\"
                   assembly=\"TaskMappings\"
                   namespace=\"TaskMappings\">
    <class name=\"Company\">
        <id name=\"Id\">
            <generator class=\"sequence\">
                <param name=\"sequence\">company_id_seq</param>
            </generator>
        </id>
        <property name=\"Name\" />
        <property name=\"Fax\" />
        <property name=\"PostalCode\" />

        <bag name=\"Users\" cascade=\"all-delete-orphan\" inverse=\"true\">
            <key column=\"UserCompany\" />
            <one-to-many class=\"User\" />
        </bag>

        <bag name=\"Phone\" cascade=\"all-delete-orphan\" lazy=\"false\">
            <key column=\"PhoneCompany\" />
            <element column=\"Phone\" />
        </bag>

        <bag name=\"Email\" cascade=\"all-delete-orphan\" lazy=\"false\">
            <key column=\"EmailCompany\" />
            <element column=\"Email\" />
        </bag>

        <bag name=\"Addresses\" table=\"address\" cascade=\"all-delete-orphan\" lazy=\"false\">
            <key column=\"AddressCompany\" />
            <element column=\"Address\" type=\"String\"/>
        </bag>
    </class>
</hibernate-mapping>

public class Company : Entity<int>
{
    public virtual string Name { get; set; }
    public virtual string Fax { get; set; }
    public virtual string PostalCode { get; set; }

    private IList<string> _phone = new List<string>();
    public virtual IList<string> Phone
    {
        get { return _phone; }
        set { _phone = value; }
    }

    private IList<string> _email = new List<string>();
    public virtual IList<string> Email
    {
        get { return _email; }
        set { _email = value; }
    }

    private IList<string> _addresses = new List<string>();
    public virtual IList<string> Addresses
    {
        get { return _addresses; }
        set { _addresses = value; }
    }

    private IList<User> users = new List<User>();
    public virtual IList<User> Users
    {
        get { return users; }
        set { users = value; }
    }
}