As Stefano says then it's not released in Asia. If it is just for "testing", then the way is to setup a Office365 test account in one of the countries where it was released, and then sign up for a BC trial with this account.
It will not give you a localized version.
When we come to the (real) summer of 2018, then Microsoft has announced that a new world wide version will be released, for all countries without an official localization/translation.