What is a flying fuselage aircraft (FFA)?
I found this off the website after some searching:


  The advantages of the flying fuselage aircraft (FFA) category,
  compared to conventional aircraft (CA) category and flying body
  aircraft (FBA) category, are the following:
  
  In conventional aircraft design, the fuselage is aerodynamically
  neutral and joins only the separate parts of the aircraft. As the
  wings grow the buoyancy grows as well. In the flying body aircrafts,
  aerodynamic lift is produced only on the outside of the fuselage and
  the wings, which comprise a unite body. As the fuselage and wings
  grow, the generated lift becomes greater. In the flying fuselage
  aircraft the extra lift is generated from the interior of the fuselage
  and from the whole aircraft in and out. Thus, maximizing the full
  extent of the aerodynamic performance of the aircraft. Practically,
  the new category of the flying fuselage has the following advantages
  compared to the other categories above. i) because of the greater
  generated lift ,the aircraft is designed smaller in size, in order to
  have the same performance as its peers.
  
  ii) due to the smaller dimensions of the aircraft, it occupies less
  space and needs a smaller hangar. (cost reduction).
  
  iii) the most important advantage is that during the flight in
  conventional and flying body aircrafts, stability comes only from the
  main wings dihedral, as well as the size of caudal. The flying
  fuselage design acts as a funnel and provides extra stability to the
  aircraft, making the air mass passing through the fuselage in a column
  of air (air shaft). This is maximizing the stability of the aircraft
  in all angles and phases of flight. Source


So what I think what they're trying to say is that the body generates lift as well. It sounds mostly like something like a blended wing body or lifting body in my opinion as a meeting point between a conventional and flying wing aircraft. In any case, the term FFA seems very uncommon and not widely used. 

SF-1 http://www.aerosports.gr/images/photos_gallery/archonSF1/4.jpg

The closest similar thing I've found was this aircraft. The F-22 Raptor which it seems to closely mimic is not considered a flying wing nor a blended wing body, and after looking at the fuselage I remained a little unconvinced that it generates substantial lift as a body due to the substantial upper structure and lower structure.