Perhaps you should try some spelling variations:
communication r » communication 3, communication 1, communication 2
a developpement » au developpement, de developpement, le developpement
developpement l » developpement il, developpement la, developpement de
technologies 3 » technologies _, technologies 4, technologies 2
3 formulation » _ formulation, _ formulating
formulation 4 » formulation _, formulation 3, formulation 2.4
l afrique » en afrique
like ted » like them, like me
like de » like me, like one
r a » dr a

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 3 formulation 4 ((like de) OR (like ted)) communication r a developpement l afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies 3 formulation 4 ((like de) OR (like ted)) communication r a developpement l afrique.*.