Perhaps you should try some spelling variations:
personal communication » interpersonal communication
information context » information content, information contents, information centers
technologies 2 » technologies _, technologies 4
des personal » des personals, der personal, das personal
4 developing » 3 developing
context des » context does, contexte des, kontext des
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 2 information context des personal communication costs 4 developing _ africa.*.