I cannot find my previous years tax return I know I filed with turbo Tex but it’s not coming up. How do I file with our last years information?

You might have another account.  That's common.  First LOG OUT of whatever TurboTax account you're logged into right now. Then use this TurboTax account recovery website to get a list of user ID's for an email address.  Run the tool against any email addresses you may have used https://myturbotax.intuit.com/account-recovery/

OR you used the Desktop CD/Download program.  Then the return is only on your computer and not stored online.

If you can't find your return, request a free transcript of your federal return from the IRS.

http://www.irs.gov/Individuals/Get-Transcript 

Or order an exact copy of your tax return (including all attachments) from the IRS. There is a $50 fee per tax return. See

http://www.irs.gov/taxtopics/tc156.html 

Do you need your AGI?
https://ttlc.intuit.com/replies/3301618