Multiple "TD" tagNames

[Datadayne]

Here is my code so far:

        Dim htmlDoc As HtmlDocument = Me.WebBrowser1.Document
        Dim visibleHtmlElements As HtmlElementCollection = htmlDoc.GetElementsByTagName("TD")
        For Each str As HtmlElement In visibleHtmlElements
            If Not str.InnerText Is Nothing Then
                Dim text As String = str.InnerText
                If text.Contains("testWord") Then
                    MsgBox("found")
                Else
                    MsgBox("not found")
                End If
            End If
        Next

There are multiple "TD" tagnames in the webpage im working with. My code looks at all of them and checks if they contain "testWord".

What I need is some way of saying:
If ANY text.Contains("testWord") Then
MsgBox("found")
Else
MsgBox("not found")
Or
If THE 8th text.Contains("testWord") Then
MsgBox("found")
Else
MsgBox("not found")

Currently im getting 20 msgBox's telling me "found" and "not found". I just want one.