Perhaps you should try some spelling variations:
communication barriers » communication series, communication disorders
based formulation » basic formulation, case formulation, based simulation
der developpement » de developpement, des developpements, leur developpement
de communication » mobile communication, online communication
formulation des » formation des, formulacion de, formulation _
developpement l » developpement il, developpement la, developpement de
barriers der » barriere der, barrieren der, barriers d
l afrique » en afrique
des does » des doses, der does, des dorfes
does de » does debt

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

• Adding a wildcard symbol may retrieve word variants: technology based formulation des does de communication barriers der developpement l afrique.*.