Perhaps you should try some spelling variations:
2.2 communication » 2.3 communication, 3.2 communication, 2.7 communication
technology 3.3.3 » technology 3.1.3, technology 3.3.1, technology 3.3.4
developpement de » developpement des, developpement durable
3.3.3 inflation » 2.3.1 inflation, 5.33 inflation, 5.4.3 inflation
inflation rates » inflation rate
a developpement » au developpement, de developpement, le developpement
de afrique » de l'afrique, en afrique, l afrique
space 2.2 » space 2.1, space 3.2, space 3.3
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 3.3.3 inflation rates space 2.2 communication costs a developpement de afrique.*.