I have family in SE North Carolina, around Pink Hill. I hunted with them during my residency in NC and was amazed at the thick cover! It drove me nuts hearing deer and not being able to see them.
What does your terrain and cover look like? What are you planting in your food plots? Check with your local agriculture department about planting Alfalfa. I grew up hunting around several different agricultural plots including, early Soybeans(harvested before season), wheat, clover, and Rape...and alfalfa was by far the best and if its properly managed will last a long time.
Have you tried pushing the deer yourself? Either with a friend or with dogs? In small wood lots, pushing deer can be a great way to get at nocturnal deer. Take a friend in and set up on one of the fringes where deer like to hang out or bed down in...take a truck if you can and leave it running while one of you gets in the stand.
Have the other person get back in the truck and drive off to the other side of the cover and have them walk the opposite end of the cover. The deer will go right back underneath of you, just make sure the wind is right.
As "Uncle Gene says, "young deer can't count"