Hi,
I have looked into this too.
You can adopt from a foreign country under that country's legal system. The second part of the process is to have the adoption recognized by your home country, this is where it gets tricky, each country has it's own rules.
E.G. Must be resident in the home country for at least a year
or the number of home visits etc.
speak to the adoption board of your home country to find out.

good Luck.

xx