TurboTax cannot "pull" tax returns that were not started using TurboTax.
If the return was started with some other tax preparation software or using a paid tax professional then the tax return should be available from those sources.
Otherwise -
You can also get free transcripts of your federal return from the IRS - http://www.irs.gov/Individuals/Get-Transcript
For a fee of $50 you can get a complete federal tax return from the IRS by completing Form 4506 - http://www.irs.gov/pub/irs-pdf/f4506.pdf
