Welcome to the forums, malinut.
I just did a search for "nook" and it yielded several, but nothing with Barnes and Noble specifically. Are you sure that name is necessary in your search?
Also, I should mention, Market does have inconsistencies from time to time; I've found that some days a search will not be successful and another day that same search will bring up exactly what I was looking for.
Try again, as I said, I searched on one word, "nook."