nlobjSearchFilter[] with an OR operator

Hi there,

Is it possible to use nlobjSearchFilter with an OR operator?, I read in the help that it use an implicit 'AND':

"By default, search filter list (nlobjSearchFilter[]) makes use only of an implicit ‘AND’ operator for filters. This is contrary to search filter expression that can explicitly use either ‘AND’ or ‘OR’ operators"

But I need to change it in order to use an OR operator, because I am doing this search:

for (var i = 1; i <= record.getLineItemCount('item'); i++)
{
     var VstItemID = record.getLineItemText('item', 'item', i);   
     if (VstItemID != undefined)
    {    
arrSearchFilters[j] = new nlobjSearchFilter('itemid', null, 'is', VstItemID);