Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
innovation contest » innovation contexts, innovation concepts, innovation congress
4.2 communications » 4.2 communication, 3.2 communication, 6.2 communication
developpement de » developpement des, developpement durable
a developpement » au developpement, de developpement, le developpement
technology une » technology use, technology used, technology uses
une innovation » use innovation, eine innovation, lane innovation
contest data » context data, content data, contents data
de afrique » de l'afrique, en afrique, l afrique
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology une innovation contest data 4.2 communications costs a developpement de afrique.*.