Perhaps you should try some spelling variations:
device communication » services communication, voice communication, mobile communication
de developpement » sme development
developpement et » developpement des, developpement de, development east
des variation » does variation, de variation, der variation
loss device » less devices, host device, cloud device
et afrique » en afrique, l afrique
a de » a die, a der, a des

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 OR typology) des variation _ loss device communication a de developpement et afrique.~".
• Adding a wildcard symbol may retrieve word variants: (typologie OR typology) des variation _ loss device communication a de developpement et afrique.*.