Perhaps you should try some spelling variations:
3.5 communication » 3.2 communication, 3 communication, 2.3 communication
inflation causes » inflation crises, inflation rates, inflation taxes
developpement en » developpement et, developpement des, developpement de
technologien 6 » technologien _, technologie 6, technologien 1
6 inflation » _ inflation, 2 inflation, d inflation
causes case » crises case, causes costs
case 3.5 » cases 3.5, case 3.5a, case 3.1

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

• Adding a wildcard symbol may retrieve word variants: technologien 6 inflation causes case 3.5 communication costs _ developpement en afrique.*.