Perhaps you should try some spelling variations:
information exchanges » information exchange, information chapter
exchanges problems » change problems, exchange programs, exchange process
1 communications » 10 communications, 14 communications, 1 communication
a developpement » au developpement, de developpement, le developpement
developpement l » developpement il, developpement la, developpement de
a information » 2 information, 1 information
technology a » technology 1, technology 3, technology 4
problems 1 » problems _, problems 3, problems a
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 a information exchanges problems 1 communications _ a developpement l afrique.*.