Perhaps you should try some spelling variations:
communication system » communication systems, telecommunication system, communication series
active development » achieve development, native development, practice development
technologies 2 » technologies _, technologies 4
development en » developpement en, development menu, development eco
system active » system achieve, system activity, system passive
de mobile » die mobile, e mobile, does mobile

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies 2 information _ de mobile communication system active development en afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies 2 information _ de mobile communication system active development en afrique.*.