Perhaps you should try some spelling variations:
power communication » your communication, fiber communication, better communication
net developpement » et developpement, de developpement, le developpement
developpement de » developpement des, developpement durable
a variation » la variation, _ variation, 2 variation
apology a » apology _, apology mea, typology a
des der » des dr, des dem, des des
des ddr » der ddr, des dr, dem ddr
a net » a new, _ net, a neo

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 a variation ((des der) OR (des ddr)) power communication a net developpement de l'afrique.~".
• Adding a wildcard symbol may retrieve word variants: apology a variation ((des der) OR (des ddr)) power communication a net developpement de l'afrique.*.