Perhaps you should try some spelling variations:
communication barriers » communication series, communication disorders
leur developpement » le developpement, deux developpements, de developpement
developpement l » developpement il, developpement la, developpement de
technologies 2 » technologies _, technologies 4
formation der » formation des, formation under, formationen der
barriers leur » barriers learn, barriers law, barriers been
2 formation » 1 formation, 1.2 formation, 2 formulation
l afrique » en afrique

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 formation der does _ communication barriers leur developpement l afrique.*.