Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
technology costs » technology cost, technology course, technology case
costs innovation » cost innovation, foster innovation, costs information
developpement de » developpement des, developpement durable
innovation rate » innovation race, innovation create, innovation state
rate space » state space, trace space, safe space
space data » spaces data, sparse data, place data
de afrique » de l'afrique, en afrique, l afrique

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

• Adding a wildcard symbol may retrieve word variants: technology costs innovation rate space data communications costs _ developpement de afrique.*.