Perhaps you should try some spelling variations:
time communication » de communication, mobile communication, online communication
das developpement » des developpements, de developpement, du developpement
technology using » technology during, technology summing, technology brings
developpement de » developpement des, developpement durable
learning over » learning one, learning poverty, learning covered
de america » _ america, en america, desde america
using a » using _

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

• Adding a wildcard symbol may retrieve word variants: technology using a learning over time communication _ das developpement de america.*.