Perhaps you should try some spelling variations:
communication barriers » communication series, communication disorders
technologies 3.1 » technologies 2.1, technologies 3.2, technologies _
de communication » mobile communication, online communication
en developpement » et developpement, de developpement, le developpement
developpement la » developpement de, developpement et, developpement du
information der » information oder, information does, informatik der
barriers en » barriers been, barriers key, barriers _
la afrique » l afrique, la fabrique, en afrique
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 3.1 information der does de communication barriers en developpement la afrique.*.