Perhaps you should try some spelling variations:
opec communication » open communication, optic communication, ec communication
communication 13 » communication 1.3, communication 3, communication 1
does development » dams development, ides development, smes development
development des » development does, development desd, development ds
des l'afrique » de l'afrique, de l'amerique
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
variation 5 » variation _, variation 6, variation a
does opec » des opec, does hope, does one
13 does » 10 does
5 does » 2 does, 4 does

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

• Adding a wildcard symbol may retrieve word variants: typologie de variation 5 does opec communication 13 does development des l'afrique.*.