Perhaps you should try some spelling variations:
information center » information centers, information centre, information content
doe communication » de communication, vote communication, une communication
technologien des » technologien fur, technologien und, technologies 2
developing areas » developing asia, developing east, developing a
des information » des informations, does information, dis information
6.4 developing » 5.4 developing, 3.3 developing, 2.2 developing
areas arenas » areas trends, seas areas
center how » century how, better how, gender how
costs 6.4 » costs 4.4, costs 4.2, costs 2.3
how doe » how does, how do, how deep

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

• Adding a wildcard symbol may retrieve word variants: technologien des information center how doe communication costs 6.4 developing areas arenas.*.