You could possibly buy it from amazon, if they will ship it to your country?

https://www.amazon.com/Phil-Tippett-R%C3%AAves-Monstres/dp/B0833WXDR2

I take it you want the documentary and not the book.

There is also quite a few new copies available on eBay and most of the sellers will ship worldwide unless you're in Russia or Ukraine. If you get a version that is region locked, it's simple to rip it and remove the region lock from the files.