Perhaps you should try some spelling variations:
de communication » mobile communication, online communication
sme development » trade development
development eco » development second, development east, development menu
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
eco afrique » en afrique
des drs » des des, des drg, des drk

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: typologie der variation ((des drs) OR (des dr)) de communication _ sme development eco afrique.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "typologie der variation ((des drs) OR (des dr)) de communication _ sme development eco afrique.*".