Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
based communications » based communication, speed communications, aided communications
technology selected » technology related, technology sector
selected formation » selection formation, selected foreign, collected information
developpement en » developpement et, developpement des, developpement de
formation 2 » formation _, formation 1, formation 5
areas based » area based, areas case
2 areas » 1 areas, 2 areal, 4 areas

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

• Adding a wildcard symbol may retrieve word variants: technology selected formation 2 areas based communications costs _ developpement en afrique.*.