public static bool IsMatchedItem(object item, string filterText, bool isFavoriteOnly)
{
    var actualItem = item as CatalogInternetService;

    if (actualItem == null)
        return false;

    if (isFavoriteOnly && !actualItem.IsFavorite)
        return false;

    if (string.IsNullOrWhiteSpace(filterText))
        return true;

    var result = false;
    var splittedFilterText = filterText.Split(FilterTextSeparators, StringSplitOptions.RemoveEmptyEntries);

    foreach (var eachFilterText in splittedFilterText)
    {
        result |= actualItem.DisplayName.IndexOf(eachFilterText, StringComparison.OrdinalIgnoreCase) > (-1)
                  || actualItem.CategoryDisplayName.IndexOf(eachFilterText, StringComparison.OrdinalIgnoreCase) > (-1)
                  || actualItem.Url.IndexOf(eachFilterText, StringComparison.OrdinalIgnoreCase) > (-1)
                  || actualItem.Packages.Count.ToString().IndexOf(eachFilterText, StringComparison.OrdinalIgnoreCase) > (-1)
                  || actualItem.Packages.Any(x => x.Name.IndexOf(eachFilterText, StringComparison.OrdinalIgnoreCase) > (-1))
                  || actualItem.Id.IndexOf(eachFilterText, StringComparison.OrdinalIgnoreCase) > (-1)
                  || actualItem.GetSearchKeywords().Any(x => x.IndexOf(eachFilterText, StringComparison.OrdinalIgnoreCase) > (-1));
    }

    return result;
}