Perhaps you should try some spelling variations:
oral communication » personal communication
information needs » information networks
development urban » development bank, development band, development update
technologies new » technologies _, technologies 4, technologies 2
new information » 2 information
de development » e development, ce development, de developpement
urban africa » urban area
needs de » needs men, needs one, needs _
costs de » costs _, costs 4, costs a
de oral » de otras, new oral

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

• Adding a wildcard symbol may retrieve word variants: technologies new information needs de oral communication costs de development urban africa.*.