Perhaps you should try some spelling variations:
development results » development report, development research
clean development » human development, urban development
technologies can » technologies a, technologies co, technologies _
information gaps » information gap
can information » von information, von informationen
costs clean » costs clear
gaps de » gaps do, camps de, gaps new
de mass » de masse, de mais, de masa

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 gaps de mass communication costs clean development results afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies can information gaps de mass communication costs clean development results afrique.*.