Perhaps you should try some spelling variations:
information centers » information contents, information officers
water communication » master communication, matter communication, layer communication
communication cost » communication costs, communication costa, communications costs
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
3.2 developing » 3.3 developing, 2.2 developing, 3 developing
developing 1 » developing _, developing a, developing e
centers 3 » centers _, centers a, centers 3.3
cost 3.2 » cost 2.4
3 water » 1 water, 2 water

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

• Adding a wildcard symbol may retrieve word variants: technologien des information centers 3 water communication cost 3.2 developing 1 africa.*.