Perhaps you should try some spelling variations:
communication model » communication media
la communication » data communication, data communications
some development » sme development, women development, site development
based informal » bain informal, game informal, based information
development en » developpement en, development menu, development eco
channels de » channels new, channels _, channels 4
model some » models some, model code

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

• Performing a fuzzy search may retrieve terms with similar spellings: technology based informal channels de la communication model some development en afrique.~.
• Adding a wildcard symbol may retrieve word variants: technology based informal channels de la communication model some development en afrique.*.