Click "Open Discussion Workbench" on the Discussion Management page. The topic list on the left supports multiple filtering options: 1) Search: Search by topic name keywords. 2) Filter: Toggle between "All" or "Unread". 3) Sort: Sort by "Latest Updated" or other conditions, with options to switch between newest-to-oldest or oldest-to-newest. 4) Advanced Filter: Provides more detailed condition settings. Once you find the topic, click it and the complete discussion thread appears on the right.