Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
speed communications » based communication, cell communications, guinea communications
en developpement » et developpement, de developpement, le developpement
developpement en » developpement et, developpement des, developpement de
can information » von information, von informationen
technology can » technology change, technology 1, technology 2.2
information 4 » information 2
cases speed » cities speed
costs en » costs _, costs 4, costs a
4 cases » 4 case, 19 cases

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

• Adding a wildcard symbol may retrieve word variants: technology can information 4 cases speed communications costs en developpement en afrique.*.