How do you find all rows of the same string in ListView?

[TwoWing]

Hello.

I have this code to find the first instance of a string in a ListView:-

 Dim item1 As ListViewItem 
                                       = ListView1.FindItemWithText(TextBox1.Text)
        If Not (item1 Is Nothing) Then
            MessageBox.Show("Found  " & item1.Text)
        Else
            MessageBox.Show("Not in!")
        End If

    End Sub

Could someone please tell me how to program so that I can get the next instance of the string, and the next, and so on.
Thanks.