I am not able to find the documents of another team member - why?
Contact the Team Owner or Admin and request the needed permission from them.
I want to see the documents of a team viewer
You cannot see the documents of a team viewer, even if you are both teammates on the same team. All team viewers can see documents shared within the team, but nobody else, including the team owner and admins themselves, cannot access their own documents.
Read more about all types of roles within a Team here.