Perhaps you should try some spelling variations:
communication series » communication services, communication systems, communication skills
formulation over » formation over, formulation model, formulation where
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
3 communication » 4 communication, de communication, data communication
technologies 3 » technologies _, technologies 4, technologies 2
3 formulation » _ formulation, _ formulating
series de » series d, series e, series new
de 3 » des 3, der 3, de 35

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

• Adding a wildcard symbol may retrieve word variants: technologies 3 formulation over de 3 communication series de developpement en afrique.*.