Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
speed communications » based communication, cell communications, guinea communications
math information » catch information, much information, health information
de developpement » sme development
developpement la » developpement de, developpement et, developpement du
technology math » technology paths, technology mit, technology make
information 2 » information 3
scale speed » escape speed, safe speed, shape speed
la afrique » l afrique, la fabrique, en afrique
costs de » costs _, costs 4, costs a
2 scale » a scale

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

• Adding a wildcard symbol may retrieve word variants: technology math information 2 scale speed communications costs de developpement la afrique.*.