Perhaps you should try some spelling variations:
welle communication » cell communication, people communication, called communication
technology social » technology series
4.2 developpement » 4.2 development, de developpement, le developpement
social functions » social function, special functions, social sanctions
developpement de » developpement des, developpement durable
functions als » functions all, functions a, functions early
vor welle » von welle
de africa » does africa, de america, use africa
als vor » adels vor, als volk

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

• Adding a wildcard symbol may retrieve word variants: technology social functions als vor welle communication costs 4.2 developpement de africa.*.