Perhaps you should try some spelling variations:
2.7 communication » 2.3 communication, 3.2 communication, 2 communication
developpement en » developpement et, developpement des, developpement de
technology best » technology based
4 developpement » de developpement, le developpement, et developpement
best inflation » bei inflation, modest inflation, about inflation
case 2.7 » case 2.3, case 2.1, case 2.2
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology best inflation _ case 2.7 communication costs 4 developpement en afrique.*.