The last four years? No. It is too late to receive an income tax refund for any tax year earlier than 2017. A refund for any earlier year has now been forfeited.
You say you went back to your home country--so we do not know if you can even use TurboTax or if you should use an alternate software. That depends on whether you are a non-resident alien.
NON RESIDENT ALIEN
If you are a non-resident alien, your return must be filed on Form 1040NR, which cannot be prepared using TurboTax. You can use TT’s partner, sprintax:
https://www.sprintax.com/non-resident-alien-tax-1040nr-turbotax.html
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
