Perhaps you should try some spelling variations:
communication barriers » communication series, communication disorders
technologies 2.1 » technologies _, technologies 4, technologies a
et developpement » de developpement, le developpement, test development
2.1 information » 3.1 information
information der » information oder, information does, informatik der
a communication » la communication, data communication, data communications
developpement l » developpement il, developpement la, developpement de
barriers et » barriers key, barriers _, barriers a
l afrique » en afrique
der debt » does debt, debt debt, der de
debt a » debt _

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

• Adding a wildcard symbol may retrieve word variants: technologies 2.1 information der debt a communication barriers et developpement l afrique.*.