Perhaps you should try some spelling variations:
communication modes » communication costs, communication media, communication methods
child development » world development
l'information et » information _, information act
a l'information » _ information, aids information, care information
technologies a » technologies _
modes child » does child, mother child
de mobile » does mobile, _ mobile, a 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 a l'information et de mobile communication modes child development _ afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies a l'information et de mobile communication modes child development _ afrique.*.