Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
2.7 communications » 2.7 communication, 2 communications, 3.1 communications
et developpement » de developpement, le developpement, test development
developpement de » developpement des, developpement durable
rate space » state space, trace space, safe space
de afrique » de l'afrique, en afrique, l afrique
space 2.7 » space 2.1, space 2.2, space 2.3
costs et » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technology _ inflation rate space 2.7 communications costs et developpement de afrique.*.