Perhaps you should try some spelling variations:
information center » information centers, information centre, information content
when communication » where communication, open communication, sign communication
communication cost » communication costs, communication costa, communications costs
technologie und » technologies 2.1
und information » fund information, road information, award information
4 developing » 3 developing
developing e » developing _, developing a, developing east
center 3.1 » center 2.1, center 4.1, century 3.1
3.1 when » 4.1 when, 6.1 when, 2.1 when
e africa » em africa, de africa, eu africa
cost 4 » cost _, cost 2.4

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

• Adding a wildcard symbol may retrieve word variants: technologie und information center 3.1 when communication cost 4 developing e africa.*.