Perhaps you should try some spelling variations:
information rates » information states, information ratio, information rules
1.4 communication » 5.4 communication, 1.1 communication, 1.3 communication
developpement de » developpement des, developpement durable
der information » insider information, sector information, labor information
a developpement » au developpement, de developpement, le developpement
technology der » technology does, technology 4ir, technology dlt
rates case » rates cape, states case, rates east
case 1.4 » case 12.4, case 4.4, case 2.4
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 der information rates case 1.4 communication costs a developpement de l'afrique.*.