Perhaps you should try some spelling variations:
communication cotes » communication cote, communication costs, communication contents
technologies volume » technology volume, technologies policies
data communication » data communications
volume variation » volume evaluation, volume ventilation, volume estimation
variation causes » variation chapter, variation des, variation series
de development » e development, ce development, de developpement
development l » development li, development 1, development law
causes case » crises case, causes costs
case data » cases data, base data, use data
l afrique » en afrique
cotes de » comites de, cartes de, postes de

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technologies volume variation causes case data communication cotes de development l afrique.*.