Perhaps you should try some spelling variations:
adoption innovations » adaptation innovations, adapting innovations, adaptation innovation
innovations using » innovation using, innovations tuning, innovations resting
1.4 communication » 5.4 communication, 1.1 communication, 1.3 communication
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
costs de » costs _, costs 4, costs a
using 4 » using 4d, using _, using a
4 1.4 » 14 1.4, 4 10.4, _ 1.4

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

• Adding a wildcard symbol may retrieve word variants: technology adoption innovations using 4 1.4 communication costs de developpement en afrique.*.