Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
4.1 communications » 4.1 communication, 3.1 communications, 4.1 communicating
information what » information war, information when, information wants
developpement la » developpement de, developpement et, developpement du
e developpement » de developpement, le developpement, et developpement
pt information » ct information, plot information, get information
technology pt » technology 1, technology 3, technology 4
what trade » wheat trade, hat trade, what made
la afrique » l afrique, la fabrique, en afrique
trade 4.1 » trade 2.2, trade 3.2
costs e » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technology pt information what trade 4.1 communications costs e developpement la afrique.*.