Perhaps you should try some spelling variations:
communication 5 » communication _, communication a, communication 3
des variations » les variations, does variation, its variations
development en » developpement en, development menu, development eco
typology des » typologie des, typologie der, typology _
5 youth » _ youth, a youth, 2 youth
soe 4 » ioe 4, sos 4
boe 4 » bot 4, box 4, ioe 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 des variations _ ((soe 4) OR (boe 4)) communication 5 youth development en afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology des variations _ ((soe 4) OR (boe 4)) communication 5 youth development en afrique.*.