Perhaps you should try some spelling variations:
communication 3 » communication _, communication a
sme development » trade development
typologies des » typologie des, typologie der, typologien der
des variation » does variation, de variation, der variation
development l » development li, development 1, development law
variation 6 » variation _, variations _, variation des
l afrique » en afrique
a oral » _ oral, 4 oral, 1 oral
2 oral » _ oral, 4 oral
3 sme » 3 same, _ sme, 3 smt

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: "typologies des variation 6 ((a oral) OR (2 oral)) communication 3 sme development l afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologies des variation 6 ((a oral) OR (2 oral)) communication 3 sme development l afrique.*.