Perhaps you should try some spelling variations:
communication skills » communication services, communication systems
clean development » human development, urban development
technologies co » technologies _, technologies 4, technologies 2
information use » information und, information 2
co information » do information, 2 information, 1 information
skills clean » skills can, spills cleanup, skills create
a afrique » l afrique, en afrique
ice mass » ice masses, ice caps
use ice » use rice, use ict, rise ice

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

• Adding a wildcard symbol may retrieve word variants: technologies co information use ice mass communication skills clean development a afrique.*.