As fishboi said, the first 3 pics are an undergravel filter. There should be a large tube and a narrow tube to fit in the 2 holes in the blue bit that slides into the large plastic grid (as you have it in the 3rd pic).
An airhose fits over the top of the narrow tube and the other end of the air hose fits onto an aquarium pump.
The last pic looks like an internal filter of some sort which, if so, has a pump inside the top bit. If it makes no noise when you plug it in I would say it is stuffed.
Is the blue bit below the red arrowed container a separate thing? It looks like a small box filter. Again, this would attach to a pump like the undergravel filter does.