To clarify, you created a Saved Search with the Search Type of "Item", and now you want the "Item Option Values" to be a column in the results, correct?
I'm not quite sure what "Item Option Values" are, as checking our own system yields no such field. Is it a Custom Item Field? You might want to check if it can be accessed via its "Default Level for Search/Reporting" in Customization/Lists, Records, & Fields/Item Fields under the Access subtab.