Perhaps you should try some spelling variations:
guinea communications » business communications, online communications, data communications
communications costs » communication costs, communications _
math information » catch information, much information, health information
developpement de » developpement des, developpement durable
technology math » technology paths, technology mit, technology make
a developpement » au developpement, de developpement, le developpement
de afrique » de l'afrique, en afrique, l afrique
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 math information _ new guinea communications costs a developpement de afrique.*.