Perhaps you should try some spelling variations:
6.12 communication » 6.2 communication, 6.1.3 communication, 3.2 communication
developpement de » developpement des, developpement durable
inflation rates » inflation rate
technologien 4 » technologien _, technologien 1, technologien 5
4 inflation » _ inflation, 2 inflation, 6 inflation
rates case » rates cape, states case, rates east
de afrique » de l'afrique, en afrique, l afrique
case 6.12 » care 6.12, case 6.1, case 6.13

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

• Adding a wildcard symbol may retrieve word variants: technologien 4 inflation rates case 6.12 communication costs _ developpement de afrique.*.