Perhaps you should try some spelling variations:
2.4 communication » 2.14 communication, 5.4 communication, 2.3 communication
et developpement » de developpement, le developpement, test development
technology rate » technology state, technology role, technology related
developpement l » developpement il, developpement la, developpement de
rate inflation » grade inflation, wage inflation, age inflation
rate practices » trade practices, state practices, water practices
practices 2.4 » practices 2.1, practices 2.5, practices 3.4
l afrique » en afrique
costs et » 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 inflation rate practices 2.4 communication costs et developpement l afrique.*.