Perhaps you should try some spelling variations:
communication pt » communication 3, communication 1, communication 2
developpement il » developpement de, developpement et, developpement du
1 developpement » de developpement, le developpement, et developpement
variation 6 » variation _, variations _, variation des
firms oral » firms rural, firms global
firms deal » firms legal, firms health, firms really
il afrique » l afrique, en afrique
pt 1 » pt 2

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 ((firms oral) OR (firms deal)) communication pt 1 developpement il afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology _ variation 6 ((firms oral) OR (firms deal)) communication pt 1 developpement il afrique.*.