Perhaps you should try some spelling variations:
information exchanges » information exchange, information chapter
exchanges problems » change problems, exchange programs, exchange process
3.3 communications » 3.1 communications, 3.3 communication, 2.3 communication
developpement il » developpement de, developpement et, developpement du
a developpement » au developpement, de developpement, le developpement
4 information » 2 information, 1 information
technology 4 » technology _, technology 1, technology 3
problems 3.3 » problems _, problems a, problems 4
il afrique » 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 4 information exchanges problems 3.3 communications _ a developpement il afrique.*.