Ask HN: How to gather multi-country response to a survey?

Guys, we are running a survey to compare experiences of entrepreneurs from different countries, but now hit a wall in terms of international response. We are doing this free and will of course share the report with everyone at the end.

We have utilized our personal networks, FB, Linkedin and startup forums/groups, but the response accordingly is skewed to 1-2 countries only based on our networks. Trying Linkedin ads now, let's see if that helps.

Do you have any advice on how we can generate some responses internationally? We are speaking to entrepreneurs personally as well, but we can't rely on that for a multi-country response, hence decided to run a survey.

The survey is here: https://docs.google.com/forms/d/1B-tLGypk5HTuw_zTnxnJLoKKqnKBHJJeoZqbKBSAzPA/viewform. In case you are or have been an entrepreneur and feel like helping out, please fill the survey too.

Thanks!