Perhaps you should try some spelling variations:
chile communications » china communications, machine communications, mobile communications
communications costs » communication costs, communications _
change information » chandos information, trade information
technology change » technological change, technological changes
developpement de » developpement des, developpement durable
4 developpement » de developpement, le developpement, et developpement
information 4 » information 2
de afrique » de l'afrique, en afrique, l afrique
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology change information 4 _ chile communications costs 4 developpement de afrique.*.