Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
technologien aids » technologien als, technologien ad, technologien des
information based » information case, information bank, transformation based
des communication » les communications, nets communication, c's communication
aids information » chandos information, series information
2.2 developing » 3.2 developing, 3.3 developing, 2.2 development
developing e » developing _, developing a, developing east
based des » based modes, based debt, based deep
cost 2.2 » costs 2.2, cost 2.4, cost 3.2
des des » des deas, des dem, des der
e areas » 1 areas, 2 areas, 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 based des des communication cost 2.2 developing e areas.*.