Perhaps you should try some spelling variations:
communication barriers » communication series, communication disorders
2.1 communication » 2.14 communication, 2.3 communication, 2.7 communication
information from » information flow, information flows
d developpement » de developpement, du developpement, le developpement
developpement l » developpement il, developpement la, developpement de
from process » from projects, from project, from success
process 2.1 » process 2.2, process 3.1, process 1
barriers d » barriers _, barriers a, barriers 4
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: technology _ information from process 2.1 communication barriers d developpement l afrique.*.