Perhaps you should try some spelling variations:
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
du developpement » de developpement, le developpement, et developpement
developpement de » developpement des, developpement durable
communication 2 » communication _, communication a, communication 3
technology use » technology 1, technology 2.2, technology 3
inflation safe » inflation rate, inflation rates, inflation taxes
use inflation » push inflation, und inflation, die inflation
spaces 6.2 » spaces 4.2, spaces 1.1, spaces 2.1
de afrique » de l'afrique, en afrique, l afrique
2 du » 2 zu, 2 de, 2 eu

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

• Adding a wildcard symbol may retrieve word variants: technology use inflation safe spaces 6.2 communication 2 du developpement de afrique.*.