Perhaps you should try some spelling variations:
3.1.5 communication » 13.4.5 communication, 3.5 communication, 3.1 communication
inflation rates » inflation rate
technologien i » technologien im, technologien _, technologien 1
i inflation » iv inflation, _ inflation, 2 inflation
des afrique » en afrique, de l'afrique
rates case » rates cape, states case, rates east
case 3.1.5 » case 3.1.1, case 3.1.2, case 3.1.3

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

• Adding a wildcard symbol may retrieve word variants: technologien i inflation rates case 3.1.5 communication costs _ developpement des afrique.*.