I must not be understanding something. Why can't the OP buy content from any itunes store they want to - as long as it's available. Here is a link showing what countries have what content
What can I buy from the iTunes Store in my country? - Apple Support
so why can't the OP pick whatever country he wants if it has the content they're looking for?
The OP is asking two different questions: (these are quotes from the OP's posts above)
1. I want to buy an album but that album is not available in the itunes store of my country.
2. IS IT POSSIBLE TO BUY AN ALBUM ON ITUNES STORE FROM THE ITUNES STORE OF MY COUNTRY ...
So which is it - the content is not available in your country or is it?