Perhaps you should try some spelling variations:
communication costs » communication systems, communication efforts, communication skills
information needs » information flows, information networks
urban development » human development
technologies a » technologies _
development en » development menu, development can, development _
a information » _ information, land information, award information
costs urban » cost urban, most urban, crisis urban
needs de » needs _, needs a

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

• Adding a wildcard symbol may retrieve word variants: technologies a information needs de _ communication costs urban development en afrique.*.