Perhaps you should try some spelling variations:
power developpement » power development, power developments, powers development
5.4 communication » de communication, data communication
developpement en » developpement et, developpement des, developpement de
communication 3 » communication _, communication a
des variation » does variation, de variation, der variation
typology des » typologie des, typologie der, typology _
soe 5.4 » mode 5.4, size 5.4, zone 5.4
3 power » 2 power, 4 power

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

• Adding a wildcard symbol may retrieve word variants: typology des variation _ soe 5.4 communication 3 power developpement en afrique.*.