Perhaps you should try some spelling variations:
2.5.1 communication » 4.5.1 communication, 2.2.3 communication, 2.5 communication
technology rapid » technology rate, technology road, technology trap
developpement du » developpement de, developpement des, developpement et
rapid inflation » rapid population
practical 2.5.1 » practices 2.5.1, practical 3.6.2, practice 20.5.1
a developpement » au developpement, de developpement, le developpement
inflation 2 » inflation _, inflation a, inflation 1
2 practical » a practical, 3 practical, 5 practical
du afrique » en afrique, l 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 rapid inflation 2 practical 2.5.1 communication costs a developpement du afrique.*.