Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
4.2 communications » 4.2 communication, 3.2 communication, 6.2 communication
generation wages » generation age, reservation wages, generation rate
developpement de » developpement des, developpement durable
a developpement » au developpement, de developpement, le developpement
technology can » technology change, technology 1, technology 2.2
can generation » cash generation, case generation, scale generation
wages space » wages race
de afrique » de l'afrique, en afrique, l afrique
space 4.2 » space 3.2, space 2.2, space 4.3
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology can generation wages space 4.2 communications costs a developpement de afrique.*.