Perhaps you should try some spelling variations:
6.13 communication » 6.1.3 communication, 2.3 communication, 4.1 communication
developpement la » developpement de, developpement et, developpement du
inflation rates » inflation rate
technologien i » technologien im, technologien _, technologien 1
i inflation » iv inflation, _ inflation, 2 inflation
la afrique » l afrique, la fabrique, en afrique
east 6.13 » east 2.1, east 4.3, east 5.1

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 east 6.13 communication costs _ developpement la afrique.*.