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