Can’t find two songs from family shared album that was purchased

My family purchased the album “Gaurdians of the galaxy: awesome mix, vol. 1” and ive been able to download most of the songs by looking at the artists and downloading the songs, however two songs from The Five Stairsteps and Raspberries are nowhere to be found on the purchased section even though he has at least one of them(the other one he never downloaded or possibly never purchased). is there any reason I shouldn’t be seeing one of the songs anymore or is there a better way to see them besides looking at artists? It’s too far back to see recent purchases.