Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
des communication » les communications, nets communication, c's communication
technologien und » technologie und, technologien des, technologien fur
formation phase » formation chapter
2.2 developing » 3.2 developing, 3.3 developing, 2.2 development
und formation » und information, und reformation, band formation
phase des » phasen des, phase der
cost 2.2 » costs 2.2, cost 2.4, cost 3.2
des des » des deas, des dem, des der

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

• Adding a wildcard symbol may retrieve word variants: technologien und formation phase des des communication cost 2.2 developing _ areas.*.