Perhaps you should try some spelling variations:
guinea communications » business communications, online communications, data communications
developpement durable » developpement de
communications a » communications _, communications law, communications media
de developpement » sme development
typologies 6.3 » typologies 2.3, typologie 1.3, typologies 2.5
6.3 variation » 3.3 variation, 6.4 variation, 1.3 variation
variation bei » variation des, variation der, variation _
den guinea » new guinea
bei den » bei der
a de » a die, a der, a des

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: typologies 6.3 variation bei den guinea communications a de developpement durable afrique.*.