Perhaps you should try some spelling variations:
choice communications » voice communications, chile communications, voice communication
communications costs » communication costs, communications _
au developpement » du developpement, de developpement, le developpement
developpement en » developpement et, developpement des, developpement de
i information » 2 information, 1 information
information 1 » information 2, information 3, information 3.2
technology i » technology ii, technology iv, technology 1
das choice » can choice, modal choice
costs au » costs a, costs amy, costs _

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technology i information 1 das choice communications costs au developpement en afrique.*.