Perhaps you should try some spelling variations:
your development » youth development, source development, power development
communication 5 » communication _, communication a, communication 3
development en » developpement en, development menu, development eco
variation did » variation des, variation der, variation im
de variation » der variation, die variation, does variation
typology de » typology _, typology 6, typology a
5 your » 3 your, 2 your, 4 your
soe 4 » boe 4, sos 4
ioe 4 » boe 4, io 4, ioe 3

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 variation did ((soe 4) OR (ioe 4)) communication 5 your development en afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology de variation did ((soe 4) OR (ioe 4)) communication 5 your development en afrique.*.