Perhaps you should try some spelling variations:
personal communication » interpersonal communication
technologien ids » technologien des, technologien als, technologien im
ids information » aids information, dis information, mis information
developing asia » development asia, developing a
information 1 » information 2, information 3, information 3.2
asia optimal » via optimal, area optimal, using optimal
de personal » der personal, des personal, de persona
1 de » 1 die, 1 der, _ de

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

• Adding a wildcard symbol may retrieve word variants: technologien ids information 1 de personal communication costs _ developing asia optimal.*.