Perhaps you should try some spelling variations:
developpement de » developpement des, developpement durable
communication i » communication 3, communication 1, communication 2
e developpement » de developpement, le developpement, et developpement
action chapter » nation chapter, education chapter
technology 3 » technology _, technology 1, technology 4
de afrique » de l'afrique, en afrique, l afrique
3 action » 3 actions, 2 action, 4 action
papers 4 » papers _, papers 5, papers 1
papers 6 » papers _, papers 5

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "technology 3 action chapter ((papers 4) OR (papers 6)) communication i e developpement de afrique.~".
• Adding a wildcard symbol may retrieve word variants: technology 3 action chapter ((papers 4) OR (papers 6)) communication i e developpement de afrique.*.