Perhaps you should try some spelling variations:
mobile communications » mobile communication
communications costs » communication costs, communications _
developpement de » developpement des, developpement durable
4 developpement » de developpement, le developpement, et developpement
technology 4ir » technology 4, technology 4.1, technology 4.2
4ir inflation » der inflation, die inflation, aid inflation
inflation id » inflation i, inflation ii, inflation und
case mobile » based mobile, das mobile, can mobile
de afrique » de l'afrique, en afrique, l 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 4ir inflation id case mobile communications costs 4 developpement de afrique.*.