Perhaps you should try some spelling variations:
online communication » mobile communication, business communication, mobile communications
des developpement » des developpements, de developpement, le developpement
series selecting » species selecting, series slicing, securities selecting
developpement en » developpement et, developpement des, developpement de
selecting aes » selecting a, selecting farm, selecting _
das online » des online, der online, die online
costs des » costs fees
aes das » als das, aes des, aus das

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

• Adding a wildcard symbol may retrieve word variants: technology series selecting aes das online communication costs des developpement en afrique.*.