Perhaps you should try some spelling variations:
communication barriere » communication barriers, communication series, communication based
leur developpement » le developpement, deux developpements, de developpement
developpement en » developpement et, developpement des, developpement de
technologies re » technologies ret, technologies art, technologies _
formulation der » formulation des, formulation de, formulation over
e communication » de communication, 1 communication, une communication
re formulation » rule formulation, _ formulation, 3 formulation
barriere leur » barriere der, barriers learn, barrieren der
does e » does de, does _, does a

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

• Adding a wildcard symbol may retrieve word variants: technologies re formulation der does e communication barriere leur developpement en afrique.*.