Perhaps you should try some spelling variations:
communication costs » communication systems, communication efforts, communication skills
urban development » human development
technologies do » technologies _, technologies a, technologies new
information gap » information _, information flow
do information » job information, how information, _ information
development en » development menu, development can, development _
costs urban » cost urban, most urban, crisis urban

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies do information gap de _ communication costs urban development en afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies do information gap de _ communication costs urban development en afrique.*.