Perhaps you should try some spelling variations:
des communication » les communications, nets communication, c's communication
information case » information based, information can, information costs
technologien 2 » technologies 2, technologien _, technologien 1
3.3 developing » 4 developing, 2 developing, 1 developing
developing 2 » developing _, developing a, developing e
costs 3.3 » costs 2.3, costs 3.5, costs 4.3
case des » cases des, case das, phase des
des des » des deas, des dem, des der
2 areas » 1 areas, 2 areal, 4 areas

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

• Adding a wildcard symbol may retrieve word variants: technologien 2 information case des des communication costs 3.3 developing 2 areas.*.