Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
technologien ids » technologien des, technologien als, technologien im
information case » information based, information can, information costs
de communication » mobile communication, online communication
ids information » aids information, dis information, mis information
2.4 developing » 12.4 developing, 2.2 developing, 5.4 developing
developing e » developing _, developing a, developing east
case des » cases des, case das, phase des
e areal » _ areal, 2 areal, 4 areal
des de » des dem, des der, des des

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

• Adding a wildcard symbol may retrieve word variants: technologien ids information case des de communication cost 2.4 developing e areal.*.