Perhaps you should try some spelling variations:
trade developpement » trade developement, trade development, de developpement
daten communication » data communication, water communication, patient communication
formulation over » formation over, formulation model, formulation where
developpement de » developpement des, developpement durable
technologies a » technologies _, technologies 4, technologies 2
a formulation » la formulation, _ formulation, 3 formulation
de afrique » de l'afrique, en afrique, l afrique
die daten » der daten, die dauer
over die » cover die, over de, over five

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

• Adding a wildcard symbol may retrieve word variants: technologies a formulation over die daten communication a trade developpement de afrique.*.