Perhaps you should try some spelling variations:
communication barriers » communication series, communication disorders
4.2 communication » 4.2 communications, 3.2 communication, 4.1 communication
developpement en » developpement et, developpement des, developpement de
technologies co » technologies _, technologies 4, technologies 2
d developpement » de developpement, du developpement, le developpement
formation des » formation _
co formation » clot formation, n2o formation, non formation
barriers d » barriers _, barriers a, barriers 4
des deces » de deces, les deces, des dechets
deces 4.2 » deces 4.1, deces 4.4.2, deces 2.1

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

• Adding a wildcard symbol may retrieve word variants: technologies co formation des deces 4.2 communication barriers d developpement en afrique.*.