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
cost 2.2 » costs 2.2, cost 2.4, cost 3.2
der des » oder des, der de, der den

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 der des communication cost 2.2 developing _ areas.*.