Perhaps you should try some spelling variations:
communications aa » communications ana, communications a, communications law
test development » forest development, port development, mena development
technologies 4 » technologies _
development du » development d, development ds, developpement du
formation des » formation _
4 formation » 1 formation, a formation, 4 formulation
du afrique » en afrique, l afrique, de l'afrique
aa test » a test, data test
how 15 » how 45

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 15) OR (how 12)) communications aa test development du afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies 4 formation des ((how 15) OR (how 12)) communications aa test development du afrique.*.