Perhaps you should try some spelling variations:
communication barrieren » communication barriers, communication between, communication bahrain
des developpement » des developpements, de developpement, le developpement
la communication » data communication, data communications
technologies 4 » technologies _
estimation der » estimation de, estimation des, estimation under
barrieren des » barrieren der, barriere der, karrieren der
des afrique » en afrique, de l'afrique
does la » does lac, does law, does a

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 estimation der does la communication barrieren des developpement des afrique.*.