Perhaps you should try some spelling variations:
le developpement » de developpement, sme development
developpement et » developpement des, developpement de, development east
do's variation » does variation, modes variation, de variation
variation 6 » variation _, variations _, variation des
et afrique » en afrique, l afrique
dc power » 2 power, 3 power, 1 power
4 power » 2 power, 3 power
apology » typology, topology

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: "apology do's variation 6 ((dc power) OR (4 power)) communication _ le developpement et afrique.~".
• Adding a wildcard symbol may retrieve word variants: apology do's variation 6 ((dc power) OR (4 power)) communication _ le developpement et afrique.*.