Perhaps you should try some spelling variations:
4.1 communications » 4.1 communication, 3.1 communications, 4.1 communicating
developpement l » developpement il, developpement la, developpement de
technologies 4 » technologies _
formation der » formation des, formation under, formationen der
4 formation » 1 formation, a formation, 4 formulation
l afrique » en afrique
der sdgs » der bdgs, der sars, die sdgs
sdgs 4.1 » sdgs 3.5
a les » a lens, a less, 2 les
a le » a la, a l, a e

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 der sdgs 4.1 communications ((a le) OR (a les)) developpement l afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies 4 formation der sdgs 4.1 communications ((a le) OR (a les)) developpement l afrique.*.