Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
information center » information centers, information centre, information content
de communication » mobile communication, online communication
developing asia » development asia, developing a
2.2 developing » 3.2 developing, 3.3 developing, 2.2 development
technologie 3 » technologies 3, technologie 3d, technologie c
3 information » 1 information
center phase » center case, center place, context phase
asia africa » cpia africa, china africa
phase de » phase der, phase des, phase die
cost 2.2 » costs 2.2, cost 2.4, cost 3.2

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

• Adding a wildcard symbol may retrieve word variants: technologie 3 information center phase de communication cost 2.2 developing asia africa.*.