Perhaps you should try some spelling variations:
personal communication » interpersonal communication
informations context » information content, information contents, information control
der personal » der personalen, der personen, der person
4 developing » 3 developing
developing 1 » developing _, developing a, developing e
context der » kontext der, context does, context do
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologies _ informations context der personal communication costs 4 developing 1 africa.*.