Perhaps you should try some spelling variations:
does development » dams development, ides development, smes development
modes variation » does variation, more variation, modern variations
4 communication » 3 communication, 5.4 communication, de communication
development et » development east, developpement et, development eco
et afrique » en afrique, l afrique
a does » 2 does, 4 does, 1 does
der 4 » der _, der e, der a

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: "(topology OR typology) modes variation _ der 4 communication a does development et afrique.~".
• Adding a wildcard symbol may retrieve word variants: (topology OR typology) modes variation _ der 4 communication a does development et afrique.*.