Perhaps you should try some spelling variations:
personal communications » personal communication, interpersonal communications, internal communications
communications costs » communication costs, communications _
technologien als » technologien des, technologien fur, technologien und
developing based » development based, developing asia, developing east
als information » als informations, aids information, laws information
4.2 developing » 2.2 developing, 3.2 developing, 4.1 developing
de personal » der personal, des personal, de persona
based real » based areal, based rural, based metal

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

• Adding a wildcard symbol may retrieve word variants: technologien als information _ de personal communications costs 4.2 developing based real.*.