Perhaps you should try some spelling variations:
formulation model » circulation model, simulation model, population model
le developpement » de developpement, sme development
developpement en » developpement et, developpement des, developpement de
3 communication » 4 communication, de communication, data communication
communication 3 » communication _, communication a
technologies 3 » technologies _, technologies 4, technologies 2
3 formulation » _ formulation, _ formulating
model does » model codes, model deep, model dom
does 3 » does _, does a, does e
3 le » 3 les, 3 la, 1 le

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

• Adding a wildcard symbol may retrieve word variants: technologies 3 formulation model does 3 communication 3 le developpement en afrique.*.