Perhaps you should try some spelling variations:
oper communication » open communication, proper communication, power communication
does developpement » de developpement, des developpements, does development
developpement et » developpement des, developpement de, development east
how valuation » how evaluation, flow valuation, how variation
typology how » typology from, typology _, typology 4.1
et afrique » en afrique, l afrique
des der » des ddr, des dem, des des

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 valuation ((des der) OR (des dr)) oper communication _ does developpement et afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology how valuation ((des der) OR (des dr)) oper communication _ does developpement et afrique.*.