Perhaps you should try some spelling variations:
developpement durable » developpement de
communications cost » communications costs, communications cross, communication costs
do communications » 10 communications, 14 communications, 2 communications
et developpement » de developpement, le developpement, test development
can information » von information, von informationen
technology can » technology change, technology 1, technology 2.2
information 2 » information 3
areas do » areas co, areas _, areas a
2 areas » 1 areas, 2 areal, 4 areas
cost et » cost e3, cost edd

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

• Adding a wildcard symbol may retrieve word variants: technology can information 2 areas do communications cost et developpement durable afrique.*.