Perhaps you should try some spelling variations:
proper communication » power communication, prone communication, provider communication
das developpements » des developpements, deux developpements, de developpement
developpements en » developpement en, developpement et, developpements de
a variation » la variation, _ variation, 2 variation
apology a » apology _, apology mea, typology a
des ddr » der ddr, des dr, den ddr
dem ddr » der ddr, dem der, den ddr
a das » 1 das, 2 das, 3 das

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 ddr) OR (dem ddr)) proper communication a das developpements en afrique.~".
• Adding a wildcard symbol may retrieve word variants: apology a variation ((des ddr) OR (dem ddr)) proper communication a das developpements en afrique.*.