Perhaps you should try some spelling variations:
telecommunications costs » telecommunications cost, telecommunication cost, telecommunication costa
trade developement » trade development, trade developments, trades development
developement en » developpement en, developpement et, developement _
variation des » variation _, variation 6, variation series
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
costs trade » costly trade
des ex » des eg, des eaux

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

• Adding a wildcard symbol may retrieve word variants: typologie de variation des ex _ telecommunications costs trade developement en afrique.*.