Perhaps you should try some spelling variations:
communication model » communication media
clean development » human development, urban development
technologies a » technologies _, technologies 4, technologies 2
information et » l'information et, information 2, information 1
a information » 2 information, 1 information
model clean » model coleman, model can, model learn
does mass » does maps, does cash, does mtrs
et does » et des, der does, act does

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies a information et does mass communication model clean development _ afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies a information et does mass communication model clean development _ afrique.*.