Can you teach rats to respond to their names?

I have four girls and I love teaching them tricks. They can spin on command and sometimes come when I make a certain sound. So I was wondering if I can actually teach them to come when I call their names.

I already tried saying their names every time they get a treat so that they make the connection. And I repeated that when they were freely coming to me during freeroam. But I am not seeing progress so far.

Is it even possible for them to learn that?

If you've also got ideas for other small tricks feel free to share. I love training them and I hope they enjoy it too.

Rat tax: Petunia devouring a watermelon.