Perhaps you should try some spelling variations:
urban development » human development
information flow » information flows
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
costs urban » cost urban, across urban, crisis urban
flow der » flow cmr, flow air, flow e
der risk » under risk, der risiko, der ring

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 flow der risk communication costs urban development _ afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies a information flow der risk communication costs urban development _ afrique.*.