gistfile1.txt

private void BtnAramaYap_Click(object sender, EventArgs e)
        {
            HtmlAgilityPack.HtmlWeb web = new HtmlAgilityPack.HtmlWeb();
            HtmlAgilityPack.HtmlDocument doc = web.Load("https://www.google.com.tr/search?q=" + tbKelime.Text);
            var links = doc.DocumentNode.SelectNodes("//h3[@class='r']/a").ToList();
            foreach (var link in links)
            {
                if (link.OuterHtml.Contains("/url?q="))
                {

                    tbBasliklar.Text += System.Web.HttpUtility.HtmlDecode(link.InnerText) + "\r\n";
                    string hrefValue = link.GetAttributeValue("href", string.Empty);
                    int index = hrefValue.IndexOf("&");
                    if (index > 0)
                    {
                        var l = hrefValue.Substring(0, index);
                        tbSiteler.Text += System.Web.HttpUtility.UrlDecode(l.Replace("/url?q=", "")) + "\r\n";
                    }
                }

            }
        }