Perhaps you should try some spelling variations:
technological system » technological systems, technological waste, technical system
communicatione costs » communication costs, communications costs, communication costa
information centers » information contents, information officers
system information » systems information, system formation, systeme d'information
et communicatione » et communication, get communication, debt communication
4 developing » 3 developing
developing a » developing _
centers ne » centers _, centers 10, centers 21
a africa » 1 africa, can africa, em africa
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: technological system information centers ne et communicatione costs 4 developing a africa.*.