Perhaps you should try some spelling variations:
5.4 communication » de communication, data communication
communication 5 » communication _, communication a, communication 3
development en » developpement en, development menu, development eco
typology des » typologie des, typologie der, typology 4.1
variation 6 » variation _, variations _, variation des
soe 5.4 » mode 5.4, size 5.4, zone 5.4
5 youth » _ youth, a youth, 2 youth
6 soe » 6 some, _ soe, 6 ioe

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 des) OR (typology _)) variation 6 soe 5.4 communication 5 youth development en afrique.~".
• Adding a wildcard symbol may retrieve word variants: ((typology des) OR (typology _)) variation 6 soe 5.4 communication 5 youth development en afrique.*.