Perhaps you should try some spelling variations:
formulation over » formation over, formulation model, formulation where
communications 5 » communications _, communications a, communications pt
do developpement » de developpement, du developpement, le developpement
developpement l » developpement il, developpement la, developpement de
l afrique » en afrique
over 1 » cover 1, over _, over a
1 data » 2.1 data, 3.1 data, 4.1 data
5 do » _ do, 1 do, i do

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

• Adding a wildcard symbol may retrieve word variants: technologies _ formulation over 1 data communications 5 do developpement l afrique.*.