Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
6.4 communications » 6.4 communication, 5.4 communication, 1.4 communication
tests information » costs information, gets information, testing information
technology tests » technology thesis, technology best, technology costs
developpement du » developpement de, developpement des, developpement et
information age » information storage, information access, information about
e developpement » de developpement, le developpement, et developpement
du afrique » en afrique, l afrique, de l'afrique
age race » wages race, age range, cane race
race 6.4 » race 1.4, grace 6.2, races 6.3
costs e » 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 tests information age race 6.4 communications costs e developpement du afrique.*.