Perhaps you should try some spelling variations:
communication methods » communication media, communication model
african development » asian development, urban development, driven development
information et » l'information et, information 2, information 1
a afrique » l afrique, en afrique
a mobile » _ mobile
et a » et al, et la, e a

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies _ information et a mobile communication methods african development a afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies _ information et a mobile communication methods african development a afrique.*.