Please help ! i need really your help for how to remove webcache

Hi,evryone.
This real bad problem i hate google do it :(
How to remove webcahe google copy sites links dublicates or all of them but only webcache ?

Here what i have need to remove.

This first 100 pages it's ok.

http://s1.postimage.org/1j9uhw1so/googleurlmaniac.png

But this.

http://s1.postimage.org/1j9w5feag/googleurlmaniac2.png

How to remove them.

here is my code:

I want to remove this problem from this code in it's own code place.

Code:

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Private Sub WebBrowser1_DocumentCompleted(ByVal sender As Object, ByVal e As System.Windows.Forms.WebBrowserDocumentCompletedEventArgs) Handles WebBrowser1.DocumentCompleted

        Dim theElementCollection As HtmlElementCollection = WebBrowser1.Document.GetElementsByTagName("a")
        For Each curElement As HtmlElement In theElementCollection
            Dim linkURL As String = curElement.GetAttribute("href").ToString
            ListBox1.Items.Add(linkURL)

        Next

      'reduce cpu in txtbox - http://www.codeguru.com/forum/showthread.php?t=410318
        Dim i As Integer
        Dim n As Integer = 2 'modify the 2, to fit your needs
        For i = 0 To 10
            If i Mod n = 0 Then
                SendKeys.Flush()
            End If
            System.Threading.Thread.Sleep(0)
        Next
        'reduce end

        'remove dupes

        ListBox1.Sorted = True

        ListBox1.Refresh()
        Dim index As Integer
        Dim itemcount As Integer = ListBox1.Items.Count

        If itemcount > 1 Then
            Dim lastitem As String = ListBox1.Items(itemcount - 1)

            For index = itemcount - 2 To 0 Step -1
                If ListBox1.Items(index) = lastitem Then
                    ListBox1.Items.RemoveAt(index)
                Else
                    lastitem = ListBox1.Items(index)
                End If
            Next
        End If

        'auto click link
        WebBrowser1.Document.Links(ListBox1.SelectedIndex).InvokeMember("click")

    End Sub

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