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.
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.