Perhaps you should try some spelling variations:
communication barriers » communication series, communication disorders
technologies 2.1 » technologies _, technologies 4, technologies a
au developpement » du developpement, de developpement, le developpement
2.1 information » 3.1 information
3 communication » 4 communication, de communication, data communication
developpement l » developpement il, developpement la, developpement de
information do » information does, information der, information due
barriers au » barriers a, barriers aa, barriers law
l afrique » en afrique
do dogs » do does
dogs 3 » dogs _, dog 3, dogs 2

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 do dogs 3 communication barriers au developpement l afrique.*.