[cflsystems]

Cloud Search is extremely opinionated service and you have very little to none control over it. If you created an attribute you may be able to enable it (so it is included in the search) from the admin CS settings. But for a field you added directly to product - I don't think so.
All search and results are done on the Cloud Search server and the whole ready formatted result is passed back to cart for display. You can't even get in the middle of the process and adjust results if necessary - like to show SKU for each product.
I suggest if possible create an attribute for this data instead of adding new field to the products table. Other than that you will have to contact QT and ask them to adjust what CS does for your specific account, how and what it returns. Of course this will cost you.