CD loaded into itunes on iMac not appearing on iPhone

Hi,

I previously loaded 3 CDs of a Spanish course into iTunes before iCloud had been invented and these appear for download onto my iPhone from iCloud.

I have loaded another 2 Spanish CDs into iTunes recently and although they are available for play in iTunes on my iMac they do not appear as downloadable from iCloud into iPhone. I have also tried synching iPhone but that doesn't work since the music is now going through iCloud

Any suggesions please? Thank you

Rick