Perhaps you should try some spelling variations:
donation chapter » nation chapter, notation chapter, foundation chapter
developpement en » developpement et, developpement des, developpement de
6 communication » 3 communication, 4 communication, de communication
technology 2 » technology _, technology 1, technology 3
2 donation » _ donation, a donation, _ donations
papers 6 » papers _, papers 5
1 eu » _ eu, i eu, 1 zu
1 e » 1 le

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 2 donation chapter papers 6 communication ((1 eu) OR (1 e)) developpement en afrique.~".
• Adding a wildcard symbol may retrieve word variants: technology 2 donation chapter papers 6 communication ((1 eu) OR (1 e)) developpement en afrique.*.