Perhaps you should try some spelling variations:
3.2 communication » 3 communication, 2.3 communication, de communication
information rate » information ratio, information related, information matter
use information » user information, house information, users information
technology use » technology 1, technology 2.2, technology 3
development de » development d, development ds, developpement de
rate while » data while, game while
while 3.2 » chile 3.1, chile 3.4, cile 3.2
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology use information rate while 3.2 communication costs a development de l'afrique.*.