Let's assume an averaged sized man (1.8 meters height 80 kg) who's sky-diving from a 5000 m height.
Let's also assume he's using tight clothes and no parachute.
The idea is:
Is it possible for him to survive the fall if he tries to get the maximum velocity he can get by free falling and later, by positioning his body horizontally in a way that resembles a wing shape, get enough upwards impulsion so he can land safely?
EDIT: I was not looking for surviving stories that happened by chance. I was looking for the possibility of a technique that would allow someone (trained) to land safely multiple times, not saying without a scratch but at least without broken bones, and without a special impact area.