If your learning account is still active, (You are undertaking other courses) then you will still have access to all the courses in your library. Completed courses are in your achievements section. If your account is inactive and has expired, then unfortunately you cannot. As with most seminars and courses, you have limited time periods to complete the content, followed by a review period of 7 days after course completion. Remember you will still have your course notes and printed resources if you have downloaded them.