Perhaps you should try some spelling variations:
open communication » human communication, 3 communication, 4 communication
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
communication 3 » communication _, communication a
mea variation » de variation, der variation, a variation
3 de » 3 die, 3 der, 3 des
apology » typology, topology

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: "apology mea variation ((2 der) OR (_ der)) open communication 3 de developpement en afrique.~".
• Adding a wildcard symbol may retrieve word variants: apology mea variation ((2 der) OR (_ der)) open communication 3 de developpement en afrique.*.