Perhaps you should try some spelling variations:
communication skills » communication services, communication systems
data communication » data communications
deux developpement » deux developpements, de developpement, du developpement
4.1 variation » 1.1 variation, 2.1 variation, 4.3 variation
des l'afrique » de l'afrique, de l'amerique
typology 4.1 » typology 2.2.1, typology _, ecology 4.1
skills deux » skills index
costs data » cost data

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

• Adding a wildcard symbol may retrieve word variants: typology 4.1 variation _ costs data communication skills deux developpement des l'afrique.*.