Perhaps you should try some spelling variations:
information rates » information states, information ratio, information rules
2.2 communication » 2.3 communication, 3.2 communication, 2.7 communication
age information » care information, rate information, die information
technology age » technology usage, technology wages, technology a
des afrique » en afrique, de l'afrique
rates case » rates cape, states case, rates east
case 2.2 » cases 2.2, case 4.2, case 2.3

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

• Adding a wildcard symbol may retrieve word variants: technology age information rates case 2.2 communication costs _ developpement des afrique.*.