Perhaps you should try some spelling variations:
de developpement » sme development
communication 3 » communication _, communication a
developpement l » developpement il, developpement la, developpement de
variation uber » variationen uber, variation bei, variation der
topologie 4 » topologies 4, topologie 1, topologie 2
4 variation » 2 variation, 4 validation
new rural » new real
l afrique » en afrique
new oral » new moral, knew moral, new arab
3 de » 3 die, 3 der, 3 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: "topologie 4 variation uber ((new oral) OR (new rural)) communication 3 de developpement l afrique.~".
• Adding a wildcard symbol may retrieve word variants: topologie 4 variation uber ((new oral) OR (new rural)) communication 3 de developpement l afrique.*.