Perhaps you should try some spelling variations:
communication barriere » communication barriers, communication series, communication based
leur developpement » le developpement, deux developpements, de developpement
technologies ret » technologies _, technologies 4, technologies 2
ret formulation » et formulation, re formulation, from formulation
formulation one » formulation over, formulation de, formulation model
4 communication » 3 communication, 5.4 communication, de communication
developpement l » developpement il, developpement la, developpement de
barriere leur » barriere der, barriers learn, barrieren der
l afrique » en afrique
does 4 » 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 one does 4 communication barriere leur developpement l afrique.*.