Perhaps you should try some spelling variations:
3.4.1 communication » 3.4.2 communication, 3.4.4 communication, 9.4.1 communication
a developpement » au developpement, de developpement, le developpement
technology 2.2 » technology _, technology 1, technology 3
2.2 inflation » 2.3 inflation, 3.2 inflation, 2.2.4 inflation
index prices » index price, index places, index provinces
prices 3.4.1 » prices 3.4.2, prices 2.3.1, prices 3.1
des afrique » en afrique, de l'afrique
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 2.2 inflation index prices 3.4.1 communication costs a developpement des afrique.*.