Perhaps you should try some spelling variations:
trade developpement » trade developement, trade development, de developpement
technologies based » technologies used, technology based, technologies a
based formulation » basic formulation, case formulation, based simulation
formulation where » formulation over, formulation des, calculation where
developpement de » developpement des, developpement durable
communication 3 » communication _, communication a
where does » where do
de afrique » de l'afrique, en afrique, l afrique
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 based formulation where does _ communication 3 trade developpement de afrique.*.