Perhaps you should try some spelling variations:
dams developpement » dams development, de developpement, du developpement
time communication » de communication, mobile communication, online communication
action series » education series
des afrique » en afrique, de l'afrique
series das » series data, series bias, series a
das time » bias time, das tier, das tuke
a dams » a das, _ dams, a dam

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

• Adding a wildcard symbol may retrieve word variants: typology _ action series das time communication a dams developpement des afrique.*.