Perhaps you should try some spelling variations:
urban development » human development
technologies can » technologies a, technologies co, technologies _
information flow » information flows
can information » von information, von informationen
costs urban » cost urban, across urban, crisis urban
flow air » flow a, flow cmr, flow der
air risk » war risk

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies can information flow air risk communication costs urban development _ afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies can information flow air risk communication costs urban development _ afrique.*.