By default Windows 8 RT does not display applications from foreign countries, this considerably reduces the interest of the Windows Store (on Windows 8 the Windows Store seems to be open by default on all languages).
It is very easy to change this setting:
Go to the Windows Store, then display the right menu (slide your finger from the right outside of the screen inwards):
Then click on parameters, this will bring up the following menu:
Go to the “Preferences” menu:
To access all Windows Store applications you must set “Simplify searching for applications in my preferred languages” to “No”.