using System;

using System.Web;

public class Program

{

    public static void Main()

    {

        string x1 = "http://mydms.clariant.com/mydms/idcplg?IdcService=GET_SEARCH_RESULTS&ftx=&QueryText=dDocTitle%20%3csubstring%3e%20%60corp%20esha%20guideline%2001%60%20%20%3cAND%3e%20%20xclat_BusinessApp%20%3cmatches%3e%20%60GMS%60%20%20%3cAND%3e%20%20xclat_Language%20%3csubstring%3e%20%60English%60%20%20%3cAND%3e%20%20xclal_OrgUnitLvl0%20%3cmatches%3e%20%60EC%20%281%29%60%20%20%3cAND%3e%20%20xclat_Scope%20%3csubstring%3e%20%60Global%60&SortField=dInDate&SortOrder=Desc&ResultCount=50000&FromPageUrl=&ResultsTitle=Corporate%20ESHA%20Guideline%20No.%2001&SearchQueryFormat=UNIVERSAL&SearchQueryFormat=UNIVERSAL&IsSavedQuery=1&dpTriggerValue=";

        string x2 = HttpUtility.UrlDecode(x1);

        string x3 = HttpUtility.HtmlDecode(x2);

        string x4 = HttpUtility.ParseQueryString(x3)["QueryText"];

        string x5 = HttpUtility.HtmlEncode(x4);

        Console.WriteLine(x5);

    }

}