Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
technologien aids » technologien als, technologien ad, technologien des
des communication » les communications, nets communication, c's communication
aids information » chandos information, series information
information case » information based, information can, information costs
2.4 developing » 12.4 developing, 2.2 developing, 5.4 developing
developing 2 » developing _, developing a, developing e
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 aids information case des des communication cost 2.4 developing 2 areas.*.