Perhaps you should try some spelling variations:
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
developpement de » developpement des, developpement durable
technology rate » technology state, technology role, technology related
a developpement » au developpement, de developpement, le developpement
rate inflation » grade inflation, wage inflation, age inflation
targeting a » targeting _, targeting how
costs a » costs _, costs 4
a 6.2 » a 3.2, a 4.2, a 6.1

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

• Adding a wildcard symbol may retrieve word variants: technology rate inflation targeting a 6.2 communication costs a developpement de l'afrique.*.