Perhaps you should try some spelling variations:
communications series » communication series, communications services, communication services
das developpement » des developpements, de developpement, du developpement
1 communications » 10 communications, 14 communications, 1 communication
technologies 2 » technologies _, technologies 4
des afrique » en afrique, de l'afrique
series das » series data, series bias, series a
table de » table des, table _, table 1
de 1 » dem 1, der 1, d 1

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information table de 1 communications series das developpement des afrique.*.