I want to hide coupon listing of my category called food-coupons

Hi,
i want to not show coupons from my category know as slug “food-coupons” on my homepage of latest listing.
How to do so in display settings > Object settings > data options> query string?

And also i need help in this other question..
I am able to show listing from a single category using taxonomy=coupon&term=food-coupons
Now how can i show listing from more than one category on homepage modifying… “taxonomy=coupon&term=food-coupons”