Perhaps you should try some spelling variations:
13.1 communication » 1.1 communication, 3.1 communication, 3.2 communication
developpement en » developpement et, developpement des, developpement de
inflation rates » inflation rate
technologien i » technologien im, technologien _, technologien 1
i inflation » iv inflation, _ inflation, 2 inflation
rates cape » rates have
cape 13.1 » case 13.1, scope 13.1, mare 13.1

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 cape 13.1 communication costs _ developpement en afrique.*.