Perhaps you should try some spelling variations:
4.2 communication » 4.2 communications, 3.2 communication, 4.1 communication
developpement et » developpement des, developpement de, development east
a developpement » au developpement, de developpement, le developpement
inflation auf » inflation a, inflation rate, inflation _
et afrique » en afrique, l afrique
auf case » auf das, off case
case 4.2 » case 4.1, case 2
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: technologien _ inflation auf case 4.2 communication costs a developpement et afrique.*.