Perhaps you should try some spelling variations:
open communication » human communication, 3 communication, 4 communication
developpement l » developpement il, developpement la, developpement de
how variation » how valuation, does variation, four variation
typology how » typology from, typology _, typology 4.1
l afrique » en afrique
der open » der oper, der opec, der tropen
a das » 1 das, 3 das, _ das
2 das » 1 das

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: "typology how variation _ der open communication ((a das) OR (2 das)) developpement l afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology how variation _ der open communication ((a das) OR (2 das)) developpement l afrique.*.