Perhaps you should try some spelling variations:
personal communication » interpersonal communication
information basis » informational basis, information based, information asia
technologies 1 » technologies _, technologies 4, technologies 2
4.2 developing » 2.2 developing, 3.2 developing, 4.1 developing
und personal » und personen, und person, und personelle
developing 4 » developing _, developing a, developing e
4 areal » 4 real, _ areal, 2 areal

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

• Adding a wildcard symbol may retrieve word variants: technologies 1 information basis und personal communication costs 4.2 developing 4 areal.*.