Perhaps you should try some spelling variations:
formulation model » circulation model, simulation model, population model
technologies ret » technologies _, technologies 4, technologies 2
developpement il » developpement de, developpement et, developpement du
ret formulation » et formulation, re formulation, from formulation
1 communication » 10 communication, 3 communication, 4 communication
b developpement » de developpement, le developpement, et developpement
model does » model codes, model deep, model dom
il afrique » l afrique, en afrique
does 1 » does _, does a, does e

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

• Adding a wildcard symbol may retrieve word variants: technologies ret formulation model does 1 communication _ b developpement il afrique.*.