Items from the Materials Tab are x8.
You should at least have 10pcs of the item you want then search for it by amountX8. After having the results, for these steps:
1. Change the "=" sign on the right side of the "value" to ">" then put 1,000,000,000 (without the commas) then refine.
2. Do the same thing again but this time use the "<" sign and put 2,000,000,000 (without the commas) then refine again.
3. Change the sign again to amountX8 then refine.
4. After doing the above steps, dismantle 1pc or 2pcs of that item and then use the new amountX8 to refine the search, and then repeat the steps again starting from the 1st one
Following these steps should leave you with 2 results. Just change them to your desired amoutX8