Perhaps you should try some spelling variations:
communication 5 » communication _, communication a, communication 3
4 communication » 3 communication, 5.4 communication, de communication
development en » developpement en, development menu, development eco
des variation » does variation, de variation, der variation
typology des » typologie des, typologie der, typology _
5 youth » _ youth, a youth, 2 youth
6 bot » 6 boot, o bot
6 iot » _ iot, 4 iot, 2 iot

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 variation ((6 bot) OR (6 iot)) 4 communication 5 youth development en afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology des variation ((6 bot) OR (6 iot)) 4 communication 5 youth development en afrique.*.