Accessing old Stories

hallo,

need some information about the userstories.
we are in the third sprint now und we use kunagi to administrate our product and sprint backlog and our task.
for some reason we want to read the userstories of sprint 1 or 2.
but i found these stories neither in the product nor in the sprint history.
Can you help me?

Thanks amuch.

Gabi Blodau