Perhaps you should try some spelling variations:
device communication » services communication, voice communication, mobile communication
development d » development ds, development 1, development did
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
d l'afrique » de l'afrique, de l'amerique
bus device » bus service, vs device, bus services
a sme » _ sme, 5 sme, a see
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: "typologie de variation _ bus device communication ((a sme) OR (3 sme)) development d l'afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologie de variation _ bus device communication ((a sme) OR (3 sme)) development d l'afrique.*.