Perhaps you should try some spelling variations:
does developpement » de developpement, des developpements, does development
communication 2 » communication _, communication a, communication 3
3 communication » 4 communication, de communication, data communication
die variation » does variation, der variation, price variation
de variation » der variation, does variation, de validation
des afrique » en afrique, de l'afrique
2 does » 4 does
6 der » _ der, 2 der, 3 der
der 3 » der _, der e, des 3

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: "policy ((de variation) OR (die variation)) 6 der 3 communication 2 does developpement des afrique.~".
• Adding a wildcard symbol may retrieve word variants: policy ((de variation) OR (die variation)) 6 der 3 communication 2 does developpement des afrique.*.