get Google search result

public struct SearchType
    {
        public string url;
        public string title;
        public string content;
        public FindingEngine engine;
        public enum FindingEngine { Google, Bing, GoogleAndBing };
    }

    public interface ISearchResult
    {
        SearchType.FindingEngine Engine { get; set; }
        string SearchExpression { get; set; }
        List<SearchType> Search();
    }

    public class GoogleSearch : ISearchResult
    {
        public GoogleSearch(string searchExpression)
        {
            this.Engine = SearchType.FindingEngine.Google;
            this.SearchExpression = searchExpression;
        }
        public SearchType.FindingEngine Engine { get; set; }
        public string SearchExpression { get; set; }

        public List<SearchType> Search()
        {
            const string urlTemplate = @"http://ajax.googleapis.com/ajax/services/search/web?v=1.0& \
                                        rsz=large&safe=off&q={0}&start={1}&gl=vn&hl=vi&userip=113.190.242.149";
            var resultsList = new List<SearchType>();
            int[] offsets = { 0, 8, 16, 24, 32, 40, 48 };
            foreach (var offset in offsets)
            {
                var searchUrl = new Uri(string.Format(urlTemplate, SearchExpression, offset));
                var page = new WebClient().DownloadString(searchUrl);
                var o = (JObject)JsonConvert.DeserializeObject(page);

                var resultsQuery =
                  from result in o["responseData"]["results"].Children()
                  select new SearchType
                  {
                      url = result.Value<string>("url").ToString(),
                      title = result.Value<string>("title").ToString(),
                      content = result.Value<string>("content").ToString(),
                      engine = this.Engine
                  };

                resultsList.AddRange(resultsQuery);
            }
            return resultsList;
        }
    }

ISearchResult searchClass = new GoogleSearch("hosting");
            var list = searchClass.Search();
            foreach (var searchType in list)
            {
                //Console.WriteLine(searchType.title);
                textBox1.Text += searchType.title + Environment.NewLine;
                textBox1.Text += searchType.url + Environment.NewLine;
                textBox1.Text += searchType.content + Environment.NewLine;
                textBox1.Text += Environment.NewLine;
            }