Perhaps you should try some spelling variations:
2.7 communication » 2.3 communication, 3.2 communication, 2 communication
technology trade » technology trends, technology transfer, technology transfers
integration wege » integration wage, integration wie, integration work
developpement en » developpement et, developpement des, developpement de
a developpement » au developpement, de developpement, le developpement
space 2.7 » space 2.1, space 2.2, space 2.3
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 trade integration wege space 2.7 communication costs a developpement en afrique.*.