Font of old songs

Hi,
I am font of old songs. I like hearing the old songs during night times in ear phone. I am searching the below songs from net to download. i am not getting it. Please give me the site names to download the following songs.

1. Oorayiram parvayilea unn parvayai naan arivean. (Dont know the movie name)
2. Kannadasa Kannadasa varuvaya (i think film name is Davam acted by Arunkumar)
3. Nalai endha neram parthu odi vaa nilaa, endru endhan thaliavan illai sendru vaa nilaa (Dont know the movie name)