Perhaps you should try some spelling variations:
3.2 communication » 3 communication, 2.3 communication, de communication
rate information » trade information, care information, age information
information when » information what, information war, information wants
du developpement » de developpement, le developpement, et developpement
developpement en » developpement et, developpement des, developpement de
technology rate » technology state, technology role, technology related
when base » when bad, when face, when have
base 3.2 » case 3.2, base 3.1, base 3.3
costs du » 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 rate information when base 3.2 communication costs du developpement en afrique.*.