Perhaps you should try some spelling variations:
communication barriers » communication series, communication disorders
technologies 2.4 » technologies 2.1, technologies 1.4, technologies 4
information oder » information der, information model, information code
en developpement » et developpement, de developpement, le developpement
2.4 information » 2.1 information, 2.2 information, 3.4 information
3 communication » 4 communication, de communication, data communication
developpement l » developpement il, developpement la, developpement de
barriers en » barriers been, barriers key, barriers _
oder does » der does, oder des, cover does
l afrique » en afrique
does 3 » does _, does a, does e

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

• Adding a wildcard symbol may retrieve word variants: technologies 2.4 information oder does 3 communication barriers en developpement l afrique.*.