Perhaps you should try some spelling variations:
opec communication » open communication, optic communication, ec communication
communication 13 » communication 1.3, communication 3, communication 1
dams development » dam development, gas development, ads development
development desd » development ssesd, development does, development deal
desd l'afrique » de l'afrique
des variation » does variation, de variation, der variation
variation 4 » variations 4, variation _, variation 6
des opec » der opec, des opnv
13 dams » 13 das
4 des » 4 der, 4 das, a des
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 4 des opec communication 13 dams development desd l'afrique.*.