Perhaps you should try some spelling variations:
communication mode » communication model, communication modes, communication module
usage information » age information, use information, wage information
1.1 communication » 4.1 communication, 1.3 communication, 1.4 communication
technology usage » technology use, technology age, technology users
information good » information goods, information guide, information gross
developpement l » developpement il, developpement la, developpement de
good prices » goods prices, food prices, gold prices
prices 1.1 » prices 2.1, prices 3.1, prices 2.4
l afrique » en 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 1.1 communication mode _ developpement l afrique.*.