For 2021 https://ttlc.intuit.com/turbotax-support/en-us/help-article/prior-year-tax-return/access-prior-year-return/L7opE9vDA_US_en_US?uid=ltbq0za6
Not possible for 2011
TurboTax online retains the online tax returns for the past seven years, the same retention period as the IRS.
The 2011 tax return is no longer available.