Perhaps you should try some spelling variations:
based communications » based communication, speed communications, aided communications
communications costs » communication costs, communications _
math information » catch information, much information, health information
ou developpement » du developpement, au developpement, de developpement
developpement de » developpement des, developpement durable
technology math » technology paths, technology mit, technology make
camp based » campus based, case based, map based
de afrique » de l'afrique, en afrique, l afrique
costs ou » costs how, 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 math information _ camp based communications costs ou developpement de afrique.*.