Perhaps you should try some spelling variations:
communication mode » communication model, communication modes, communication module
usage information » age information, use information, wage information
1.4 communication » 5.4 communication, 1.1 communication, 1.3 communication
technology usage » technology use, technology age, technology users
information good » information goods, information guide, information gross
developpement de » developpement des, developpement durable
good prices » goods prices, food prices, gold prices
prices 1.4 » prices 2.4, prices 4, prices 2.1
de afrique » de l'afrique, en afrique, l afrique

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

• Adding a wildcard symbol may retrieve word variants: technology usage information good prices 1.4 communication mode _ developpement de afrique.*.