Perhaps you should try some spelling variations:
information centre » information centers, information contents
technologien aids » technologien als, technologien ad, technologien des
aids information » chandos information, series information
10 communication » 1 communication, de communication, 3 communication
3.2 developing » 3.3 developing, 2.2 developing, 3 developing
developing wup » developing amp, developing bop, developing crop
centre 2011 » centre 2010, centre 2013, centre 2015
wup africa » eu africa
costs 3.2 » costs 4.2, cost 3.2, costs 3.5
2011 10 » 2011 12, 2011 1, 2011 18

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

• Adding a wildcard symbol may retrieve word variants: technologien aids information centre 2011 10 communication costs 3.2 developing wup africa.*.