Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
based communications » based communication, speed communications, aided communications
math information » catch information, much information, health information
developpement de » developpement des, developpement durable
technology math » technology paths, technology mit, technology make
4 developpement » de developpement, le developpement, et developpement
information 3 » information 2
steps based » step based, ses based, ships based
de afrique » de l'afrique, en afrique, l afrique
3 steps » _ steps, 3 step, 5 steps
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 math information 3 steps based communications costs 4 developpement de afrique.*.