How do I execute Custom WebSite Search.

WebSiteSearch search = new WebSiteSearch();
search.AddCriteria("News Article"); // search creteria
search.SystemFilterOptions = SystemFilterOptions.Enabled | SystemFilterOptions.Date;// you can set/change system filter options
//search.CustomFilter = "Title='my_Title'";
search.Modules = new System.Collections.Generic.List<Guid>{ new Guid("8e3aa9b3-ce3e-45f6-8bb3-f520ddeb2280") }; // List of modules Id's you want to search
using (SqlConnection connection = new SqlConnection(Management.SelectConnectionString))
{
	connection.Open();
	foreach (DataRow dr in search.GetTable().Rows)
	{
		Guid dataId = (Guid)dr["DataId"];
		string title = (string)dr["Title"];
	}
}