Perhaps you should try some spelling variations:
personal communications » personal communication, interpersonal communications, internal communications
development karst » development first, development kit, development korea
technologien dis » technologien des, technologien als, technologien im
information case » information based, information can, information costs
dis information » mis information, aids information, des informations
3 development » 2 development
und personal » und personen, und person, und personelle
karst areas » karstic areas, forest areas, thrust areas
case und » cases und, hase und, kase und

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

• Adding a wildcard symbol may retrieve word variants: technologien dis information case und personal communications _ 3 development karst areas.*.