Perhaps you should try some spelling variations:
trade developpement » trade developement, trade development, de developpement
formulation over » formation over, formulation model, formulation where
developpement il » developpement de, developpement et, developpement du
communication 3 » communication _, communication a
technologies 4 » technologies _
4 formulation » _ formulation, 3 formulation, 2 formulation
il afrique » l afrique, en afrique
over does » cover does, der does, over de
3 trade » 1 trade, 4 trade, 2 trade

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 formulation over does _ communication 3 trade developpement il afrique.*.