Perhaps you should try some spelling variations:
device communication » services communication, voice communication, mobile communication
development de » development d, development ds, developpement de
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
vs device » _ device, a device, 4 device
a sme » _ sme, 3 sme, a see
5 sme » 5 some, 5 same, _ 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: "typologie de variation _ vs device communication ((a sme) OR (5 sme)) development de l'afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologie de variation _ vs device communication ((a sme) OR (5 sme)) development de l'afrique.*.