Perhaps you should try some spelling variations:
developpement et » developpement des, developpement de, development east
variation 2 » variation 27, variation _, variation 6
et afrique » en afrique, l afrique
der human » d.c human
2 der » _ der
a du » a d, a u, _ du
a de » a die, a der, a des

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: "typology _ variation 2 der human communication ((a du) OR (a de)) developpement et afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology _ variation 2 der human communication ((a du) OR (a de)) developpement et afrique.*.