We have now introduced a feature that will allow you to refine your search to a specific country.
When creating a campaign, there is a drop down listing various TLDs. This will limit your prospecting results to a specific TLD for the selected country.
Use the country drop down to pick from various TLDs connected to that area.
Please note: not every country has the corresponding TLDs at this moment. If you wish for a TLD to be added, please contact support and we will place your suggestion as a feature request.