Perhaps you should try some spelling variations:
communication barriere » communication barriers, communication series, communication based
technologies rule » technologies reduce, technologies could, technologies ret
der developpement » de developpement, des developpements, leur developpement
rule formulation » re formulation, la formulation, case formulation
de communication » mobile communication, online communication
developpement en » developpement et, developpement des, developpement de
barriere der » barrieren der, barrieren des, barriera di
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: technologies rule formulation _ does de communication barriere der developpement en afrique.*.