Perhaps you should try some spelling variations:
developpement durable » developpement de
age information » care information, rate information, die information
a developpement » au developpement, de developpement, le developpement
technology age » technology usage, technology wages, technology a
costs a » costs _, costs 4
gap 4 » gap _, gap a

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

• Performing a fuzzy search may retrieve terms with similar spellings: technology age information gap 4 _ communication costs a developpement durable afrique.~.
• Adding a wildcard symbol may retrieve word variants: technology age information gap 4 _ communication costs a developpement durable afrique.*.