Perhaps you should try some spelling variations:
personal communication » interpersonal communication
communication cost » communication costs, communication costa, communications costs
information 1.2 » information 1.5.2, information 2
technologien 2 » technologies 2, technologien _, technologien 1
2.4 developing » 12.4 developing, 2.2 developing, 5.4 developing
ein personal » ein persona, non personal, e personal
1.2 ein » 1.2 eine, 2.2 ein, 3.2 ein

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

• Adding a wildcard symbol may retrieve word variants: technologien 2 information 1.2 ein personal communication cost 2.4 developing _ areas.*.