Perhaps you should try some spelling variations:
communication barriere » communication barriers, communication series, communication based
leur developpement » le developpement, deux developpements, de developpement
technologies rule » technologies reduce, technologies could, technologies ret
formulation model » circulation model, simulation model, population model
rule formulation » re formulation, la formulation, case formulation
3 communication » 4 communication, de communication, data communication
developpement l » developpement il, developpement la, developpement de
barriere leur » barriere der, barriers learn, barrieren der
model does » model codes, model deep, model dom
l afrique » en afrique
does 3 » 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 rule formulation model does 3 communication barriere leur developpement l afrique.*.