Itunes question?

hi i want these music videos "S.O.S." by rihanna, "Heartbreaker" by Mariah Carey, "I Don't Love You" by My Chemical Romance, "Toxic" by Brittney Spears, "One More Time.." by Brittney Spears "Rich Girl" by Gwen Stefani, "It's Like That" by Mariah Carey and i think there are more but i cannot find these on the australian itunes and cannot get them on the us or any other itunes store do you know where i san put in suggestions about this or contact itunes about getting these music videoclips?