Perhaps you should try some spelling variations:
personal communications » personal communication, interpersonal communications, internal communications
communications costs » communication costs, communications _
technologies 2 » technologies _, technologies 4
4.2 developing » 2.2 developing, 3.2 developing, 4.1 developing
die personal » die personale, de personal, die persona
developing 1 » developing _, developing a, developing e
1 areas » 1 area, 2 areas, 4 areas

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information _ die personal communications costs 4.2 developing 1 areas.*.