Perhaps you should try some spelling variations:
der developpements » des developpements, deux developpements, de developpement
opec communication » open communication, optic communication, ec communication
developpements en » developpement en, developpement et, developpements de
communication 3 » communication _, communication a
des variation » does variation, de variation, der variation
des opec » der opec, des opnv
3 der » _ der, 2 der
typologie » typologies, typology

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: typologie des variation _ des opec communication 3 der developpements en afrique.*.