Perhaps you should try some spelling variations:
2 communication » 3 communication, 4 communication, 1 communication
4 developpement » de developpement, le developpement, et developpement
developpement l » developpement il, developpement la, developpement de
3 interactions » 3 interaction, 4 interactions, 3.3 interactions
interactions a » interactions _, interactions 4, interactions among
technology 3 » technology _, technology 1, technology 4
a problems » a problem, 2 problems, 3 problems
problems 2 » problems _, problems 3, problems a
l afrique » en afrique
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology 3 interactions a problems 2 communication costs 4 developpement l afrique.*.