Is there any possibility to keep age of expired domains?

Good evening,

I know it's nearly impossible, but is there any possibility that expired domains can get their age back? Due to my experience Google resets them all back to 0, but I might be wrong. If it's not possible than please where to buy still active domains with age (and not too expensive :p)?

I am very eager to learn from analysts and experts in the field o_O:)!