Searching ListView2 for string and removing

[Cjones636]

Trying to figure out how to find the text that is typed in "SeedKW text" and when Cmd button i clicked, it removes that text from "SeedKW text" from listview2

Dim srt As String = "Searches related to " & SeedKW.Text
        For Each srtItem As ListViewItem In ListView2.Items
            If srtItem.SubItems.Item(0).Text = srt Then
                MsgBox(srt)
            End If
        Next

I Would like to have it search for a partial string like and removing everything from listview one that contains "Searches related to" is that's possible.