Perhaps you should try some spelling variations:
power developpement » power development, power developments, powers development
developpement en » developpement et, developpement des, developpement de
4 communication » 3 communication, 5.4 communication, de communication
communication 5 » communication _, communication a, communication 3
variation im » variation _, variation 6, variation des
typology de » typology 6, typology a, typologie des
5 power » 2 power, 3 power, 4 power
im sos » im sog
sos 4 » qos 4, sds 4, ses 4

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: "((typology de) OR (typology _)) variation im sos 4 communication 5 power developpement en afrique.~".
• Adding a wildcard symbol may retrieve word variants: ((typology de) OR (typology _)) variation im sos 4 communication 5 power developpement en afrique.*.