Perhaps you should try some spelling variations:
does developpement » de developpement, des developpements, does development
opec communication » open communication, optic communication, ec communication
apologien der » typologien der, apologie des, ideologien der
der variation » de variation, does variation, die variation
des afrique » en afrique, de l'afrique
der opec » der oper, des opec, der opfer
a does » 2 does, 4 does, 1 does

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

• Adding a wildcard symbol may retrieve word variants: apologien der variation _ der opec communication a does developpement des afrique.*.