Buy a chain saw and start cutting some trees down in 1/4 to 1/2 acre patches leaving the tree tops. This will create natural regrowth or browse for the deer and will also create heavy brush the deer will feel comfortable in. Also if there is an area on your land that is hard to hunt, you should make it an off limits area, somewhere the deer can go and not be bothered. Deer, especially buck, will not stick around if they are being disturbed all the time.