MediaWiki:Action-extendedsearch-viewspecialpage/qqq
placeholder to describe that view of special page "⧼specialextendedsearch⧽" is restricted for the current user.
Associated actions - in the sentence "You don't have permission to X", where the first part of the sentence comes from permissionserrorstext-withaction ("You do not have permission to $2, for the following {{PLURAL:$1|reason|reasons}}:").
This is an action that corresponds to a user right. See Special:ListGroupRights for an overview of the rights used on translatewiki.net. See Manual:User rights at MediaWiki.org for general information.