List filtered by checkboxes based on values

Hi guys,

I'm quite new to this forum and need some help with creating a checkbox list to sort countries.

I basically have a list of 180 countries that I want to filter by areas and other indicators (eg. population size bigger than 5 million).
So far I have managed to create the checkboxes to filter the countries by areas (with the help of some earlier threads), but now I want to combine this filter with
other indicators from different columns. Also for now, the process gets triggered by pressing a button and it would be nice if it gets filtered as soon as you check one box.

In the end the file should be able to display for example all countries in Asia with a population > 5 million and a PPP > $30,000.

Would be really great if someone here could help me out