Perhaps you should try some spelling variations:
communication costa » communication costs, communications costs, communication cote
information wages » information age, information wants, information war
2.3 communication » 3.2 communication, de communication, 4 communication
developpement en » developpement et, developpement des, developpement de
get information » gets information, debt information, ct information
e developpement » de developpement, le developpement, et developpement
technology get » technology gap, technology gaps, technology 21st
wages trade » wages race, wharves trade, states trade
trade 2.3 » trade 2.2, trade 2.1, trade 1.3

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

• Adding a wildcard symbol may retrieve word variants: technology get information wages trade 2.3 communication costa e developpement en afrique.*.