Perhaps you should try some spelling variations:
oral communication » personal communication
variation being » variation bei, variation using, variation among
developpement l » developpement il, developpement la, developpement de
apologien der » typologien der, apologie des, ideologien der
der variation » de variation, does variation, die variation
being does » lending does, reading does
does oral » does formal, does oil
l afrique » en afrique
a der » _ der, 2 der, 3 der
a de » a die, a des, _ de

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 being does oral communication ((a de) OR (a der)) developpement l afrique.~".
• Adding a wildcard symbol may retrieve word variants: apologien der variation being does oral communication ((a de) OR (a der)) developpement l afrique.*.