Perhaps you should try some spelling variations:
personal communication » interpersonal communication
communication costa » communication costs, communications costs, communication cote
information 11.2 » information 1.2, information 15.2, information 11.3
der personal » der personalen, der personen, der person
3 developing » 3 development
developing 2 » developing _, developing a, developing e
11.2 der » 1.1.2 der, 1.2 der, 10.1.2 der
costa 3 » costa e, costa p
2 areal » 2 real, _ areal, 2 areas

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information 11.2 der personal communication costa 3 developing 2 areal.*.