Perhaps you should try some spelling variations:
communication costs » communication systems, communication efforts, communication skills
information needs » information flows, information networks
technologies a » technologies _
a information » _ information, land information, award information
development a » development _, development bank, development banks
a mobile » _ mobile
needs a » needs _, need a

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies a information needs a mobile communication costs _ development a afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies a information needs a mobile communication costs _ development a afrique.*.