Perhaps you should try some spelling variations:
2.2 communication » 2.3 communication, 3.2 communication, 2.7 communication
technology price » technology rich, technology voice, technology service
developpement de » developpement des, developpement durable
inflation wages » inflation rates, inflation taxes, inflation targets
a developpement » au developpement, de developpement, le developpement
lower 2.2 » power 2.1, power 2.3, lower co2
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 price inflation wages lower 2.2 communication costs a developpement de l'afrique.*.