Need help with my iTunes on iPhone 5 and Macbook Pro

Need help with my iPhone 5 and my Macbook Pro. I was purchased some music on itunes at my mac. Some reason I deleted those music from both on Mac and iPhone 5. Today, I went to my iPhone iTunes store inside of iCloud to redownload my puchased. But those song won't able to sync back to my iTunes library on my Mac. Can anyone help me with that ??....