Perhaps you should try some spelling variations:
communications av » communications a, communications aa, communications law
et developpement » de developpement, le developpement, test development
developpement du » developpement de, developpement des, developpement et
technologies 4 » technologies _
formation des » formation _
4 formation » 1 formation, a formation, 4 formulation
du afrique » en afrique, l afrique, de l'afrique
how 14 » how 12, how 15, how 14.6
how 24 » how 2.4
av et » av ett, av en, a et

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "technologies 4 formation des ((how 14) OR (how 24)) communications av et developpement du afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies 4 formation des ((how 14) OR (how 24)) communications av et developpement du afrique.*.