Perhaps you should try some spelling variations:
oper communication » open communication, proper communication, power communication
development east » development southeast, development 1
ideologie der » ideologie und, typologie der
der variation » de variation, does variation, die variation
variation des » variation _, variation 6, variation series
east afrique » east africa, east african, en afrique
dr oper » der oper, der opec, der open
a does » 4 does, 1 does, 3 does
2 does » 4 does

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: "ideologie der variation des dr oper communication ((a does) OR (2 does)) development east afrique.~".
• Adding a wildcard symbol may retrieve word variants: ideologie der variation des dr oper communication ((a does) OR (2 does)) development east afrique.*.