Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
technology center » technology centers, technology centered, technology centres
4 developpement » de developpement, le developpement, et developpement
developpement l » developpement il, developpement la, developpement de
center nation » century nation, central nation, einer nation
nation rate » nation race, notation rate, nation state
rate rate » rates rates, rate ratio, rate water
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 center nation rate rate data communications costs 4 developpement l afrique.*.