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 des » technologien fur, technologien und, technologies 2
formation phase » formation chapter
2.2 developing » 3.2 developing, 3.3 developing, 2.2 development
des formation » des formations, de formation, des information
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 des formation phase des des communication cost 2.2 developing _ areas.*.