That's why you get an option to keep their folders before deleting the
account. To try and retrieve your deleted files, you would want to use an
undelete utility. These are commonly available for free, and work on the
premise that the space the file formerly occupied has not been overwritten
with new data yet. Once that has occured, recovery requires more extensive
(and expensive) work with dedicated forensic tools by someone who knows what
they are doing.
