You can select the following options from the Display > Show submenu.
- Show Selection
-
Shows the selected object(s).
Hotkey: Shift + H
- Show Last Hidden
-
Shows the last hidden selection.
Hotkey: Ctrl + Shift + H
- All Surface CVs
- Shows all of the CVs on all NURBS surfaces in the scene.
- All Components
-
Shows all hidden polygon components on the selected objects.
Hotkey: Ctrl + Alt + H
- All
- Shows all hidden objects, whether they are selected or not.