Perhaps you should try some spelling variations:
information rates » information states, information ratio, information rules
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
4 communication » 3 communication, 5.4 communication, de communication
technologies 1 » technologies _, technologies 4, technologies 2
rates time » takes time
systems de » systemes de, systems der, systems die
time 4 » time _, time a, time 1

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies 1 information rates time 4 communication systems de developpement en afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies 1 information rates time 4 communication systems de developpement en afrique.*.