I see. Well, you won't be seeing them fall off in the next 24 months. But if you have had perfect payment history on all your accounts for 3+ years you might try seeing what you can accomplish with Goodwill Letters.
I'm a little doubtful that there's much more you can do, since you really did have many separate loans, they really did appear on your reports for years as many accounts, and then much later you really were late on payments for them.
If someone with more experience in derogs wants to chime in I would certainly defer to them.