Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
2.3 communications » 2.3 communication, 4.3 communication, 1.3 communication
developpement de » developpement des, developpement durable
inflation rates » inflation rate
a developpement » au developpement, de developpement, le developpement
technology gap » technology 1, technology 2.2, technology 3
gap inflation » has inflation, grade inflation, rapid inflation
de afrique » de l'afrique, en afrique, l afrique
space 2.3 » space 2.1, space 2.2, space 3.3
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 gap inflation rates space 2.3 communications costs a developpement de afrique.*.