If you saved your articles in OneSearch, you will need to log in to My EBSCOhost to access them. You can access My EBSCOhost by clicking on "Sign In" in the upper right corner of the search screen:
You will need to log in using the username and password you created for your EBSCO account. If you did not create an account before saving the articles, then those articles are likely lost. You will need to create an account and sign into it before saving any articles if you would like them to be accessible later.
For more information see our guide on How do I set up an account in EBSCO?