If you go to the group settings (... inside group) you can go to advanced settings and tick DO NOT INDEX under seo settings. That should help.
In Tribe you can ask and answer questions and share your experience with others!
Secret group: The secret group can only be viewed by admins and those users who are invited. The search engine can not index the group page and its content.
Private group: While the title and description of a private group page will be indexed, the content will not be accessible to the search engine.
Public group: The content of public groups from the public communities are indexed.
Please note that if a community is private no content will be indexed.