Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
technologien aids » technologien als, technologien ad, technologien des
aids information » chandos information, series information
information case » information based, information can, information costs
de communication » mobile communication, online communication
3.2 development » 1 development, mena development
case des » cases des, case das, phase des
cost 3.2 » cost 2.4
1 areas » 1 area, 2 areas, 4 areas
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 aids information case des de communication cost 3.2 development 1 areas.*.