Perhaps you should try some spelling variations:
de developpement » sme development
developpement la » developpement de, developpement et, developpement du
communication 4 » communication _, communication a, communication 3
variation 6 » variation _, variations _, variation des
la afrique » l afrique, la fabrique, en afrique
der open » der oper, der opec, der tropen
dr open » d open, door open, die open
4 de » 4 die, 4 der, 4 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 _ variation 6 ((dr open) OR (der open)) communication 4 de developpement la afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology _ variation 6 ((dr open) OR (der open)) communication 4 de developpement la afrique.*.