Perhaps you should try some spelling variations:
lan communication » lean communication, plans communication, lanka communications
clean development » human development, urban development
technologies 1 » technologies _, technologies 4, technologies 2
development en » developpement en, development menu, development eco
costs clean » costs clear
die lan » die land, die lab, die lag

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies 1 information _ die lan communication costs clean development en afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies 1 information _ die lan communication costs clean development en afrique.*.