Perhaps you should try some spelling variations:
personal communications » personal communication, interpersonal communications, internal communications
communications costs » communication costs, communications _
information centre » information centers, information contents
technologies 2 » technologies _, technologies 4
4.2 developing » 2.2 developing, 3.2 developing, 4.1 developing
der personal » der personalen, der personen, der person
developing a » developing _
centre der » centre de, centre des, centres de
a africa » 1 africa, can africa, em africa

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information centre der personal communications costs 4.2 developing a africa.*.