Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
clean development » human development, urban development
technologies de » technologies _, technologies 4, technologies 2
de information » die information, de informacion, e information
development en » developpement en, development menu, development eco
information a » information age, information about
costs clean » costs clear
de data » e data, wide data, de datos
a de » a die, a der, a des

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies de information a de data communications costs clean development en afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies de information a de data communications costs clean development en afrique.*.