SearchTerm = Request.QueryString["s"];

if (string.IsNullOrEmpty(SearchTerm))

    return;

var criteria = ExamineManager.Instance.SearchProviderCollection["CompaniesSearcher"].CreateSearchCriteria();

var filter = criteria.GroupedOr(new string[] { "nodeName", "bodyText", "contactText", "createDate" }, SearchTerm)

                    .And().Field("__IndexType", "content")

                    .Not().Field("navigationHide", "1").Compile();

SearchResults = ExamineManager.Instance.SearchProviderCollection["CompaniesSearcher"].Search(filter);

SearchReulstListing.DataSource = SearchResults;

SearchReulstListing.DataBind();