Perhaps you should try some spelling variations:
set developpement » et developpement, de developpement, le developpement
oil communication » oral communication, social communication, moral communication
apologien der » typologien der, apologie des, ideologien der
der variation » de variation, does variation, die variation
de afrique » de l'afrique, en afrique
l afrique » en afrique
des oil » does oil, des oid, debt oil
a set » _ set

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: "apologien der variation _ des oil communication a set developpement ((de afrique) OR (l afrique)).~".
• Adding a wildcard symbol may retrieve word variants: apologien der variation _ des oil communication a set developpement ((de afrique) OR (l afrique)).*.