Perhaps you should try some spelling variations:
connection costs » congestion costs, connection fees
α communication » 3 communication, 4 communication, 1 communication
developpement en » developpement et, developpement des, developpement de
technology grid » technology guides, technology bridge, technology gurus
4 developpement » de developpement, le developpement, et developpement
costs point » costs policy
point α » point _, point 4, point a
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology grid connection costs point α communication costs 4 developpement en afrique.*.