chunk generation

so i have been play minecraft for a couple of mouths and found a bud with the chunk generation were the chunks wont load in and you can see threw the ground like your xraying i this problem happens to me on multiplayer and single player minecraft its realy annouing because your able to get stuck in the unloaded chunks and if you get far anof into it then you can get out and the chunk wont load in i hardly ever play single player because of this problem