Perhaps you should try some spelling variations:
online communication » mobile communication, business communication, mobile communications
development eco » development second, development east, development menu
des variation » does variation, de variation, der variation
variation due » variation de, variation des, variation der
typology des » typologie des, typologie der, typology _
eco afrique » en afrique
des online » der online, das online, die online
due des » vue des, que des, durre des
5 some » 2 some, 3 some, 4 some
5 sme » 5 same, _ sme, 3 sme

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 des variation due des online communication ((5 sme) OR (5 some)) development eco afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology des variation due des online communication ((5 sme) OR (5 some)) development eco afrique.*.