Perhaps you should try some spelling variations:
mobile communications » mobile communication
communications costs » communication costs, communications _
information past » information part, information pt, information pack
developing area » developing areas, developing asia, developing real
d information » nd information, od information, und information
decade mobile » case mobile
technology d » technology 1, technology 3, technology 4
4 developing » 3 developing
past decade » last decade, lost decade, first decade
area africa » areas africa, asia africa, care africa
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 d information past decade mobile communications costs 4 developing area africa.*.