Perhaps you should try some spelling variations:
information center » information centers, information centre, information content
developed country » developed countries, developing country
technologien und » technologie und, technologien des, technologien fur
ec communication » de communication, 3 communication, 4 communication
und information » fund information, road information, award information
3.1 developed » 3.2 developed, 5.1 developed, 6.1 developed
country asia » country basis, country basic, countries asia
center hold » centers hold, enter hold, center how
costs 3.1 » costs 3.5, costs 4.1, costs 2.1

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

• Adding a wildcard symbol may retrieve word variants: technologien und information center hold ec communication costs 3.1 developed country asia.*.