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
communication 2 » communication _, communication a, communication 3
a variation » la variation, _ variation, 2 variation
apology a » apology _, apology mea, typology a
des ddr » des dr, dem ddr, den ddr
2 das » 1 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 (der ddr)) proper communication 2 das developpements en afrique.~".
• Adding a wildcard symbol may retrieve word variants: apology a variation ((des ddr) OR (der ddr)) proper communication 2 das developpements en afrique.*.