Perhaps you should try some spelling variations:
communication barriere » communication barriers, communication series, communication based
technologies ret » technologies _, technologies 4, technologies 2
le developpement » de developpement, sme development
developpement la » developpement de, developpement et, developpement du
ret formulation » et formulation, re formulation, from formulation
formulation des » formation des, formulacion de, formulation _
4 communication » 3 communication, 5.4 communication, de communication
barriere le » barriere der, derriere le, barrieren der
la afrique » l afrique, la fabrique, en afrique
des does » des doses, der does, des dorfes
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 des does 4 communication barriere le developpement la afrique.*.