Perhaps you should try some spelling variations:
communication barrieren » communication barriers, communication between, communication bahrain
der developpement » de developpement, des developpements, leur developpement
technologies re » technologies ret, technologies art, technologies _
developpement l » developpement il, developpement la, developpement de
re formulation » rule formulation, _ formulation, 3 formulation
formulation de » formulation des, formulacion de, formulation du
barrieren der » barriere der, barrieren des, karrieren der
l afrique » en afrique
de does » der does, do does, one does

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

• Adding a wildcard symbol may retrieve word variants: technologies re formulation de does _ communication barrieren der developpement l afrique.*.