saved search and c#

i am new to netsuite and i am trying to create a search, which i did , an item saved search, nothing special, got 4 colunms,

internal id,
name,
description,
type,
base price ,
formula (text) as sku

i am using an itemsearchadvanced in c# but i am only getting back type and description..
here is the webservice
https://webservices.netsuite.com/wsdl/v2011_2_0/netsuite.wsdl
and here s the c# code... i am going nuts.... trying to see why not all the colunms are populated....



   public List<Item> SearchItem(string searchId)
        {
           List<Item> item = new List<Item>();