Looking for a solution to this exact problem brought me here, but unfortunately nobody gave the right answer. Here it is: Add the parameter gl=(countrycode).
For example, to see the list of top free business applications in your country, use this:
https://play.google.com/store/apps/category/BUSINESS/collection/topselling_free
Adding gl=ru gives you the list for Russia:
https://play.google.com/store/apps/category/BUSINESS/collection/topselling_free?gl=ru