After you file

If you used the ONLINE version and changed anything AFTER you filed then you permenantly overwrote the tax file in Turbo Tax.

If you want a copy of the actually filed return you will need to get that from the IRS...

You can get a return transcript from the IRS for free :  http://www.irs.gov/Individuals/Get-Transcript

For a $50 fee you can get a copy of the return from the IRS:  https://ttlc.intuit.com/questions/1901218-can-i-get-a-copy-of-my-tax-return-from-the-irs