Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
information centre » information centers, information contents
technologien aids » technologien als, technologien ad, technologien des
aids information » chandos information, series information
et communication » et communicatione, get communication, debt communication
developing can » developing a, developing ai, developing av
1 developing » 3 developing, 4 developing, 2 developing
can africa » urban africa
centre 83 » centre 2.3, centre 480, centre ec3
cost 1 » cost 12, cost 15, cost _
83 et » 13 et, 8 et, 23 et

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 83 et communication cost 1 developing can africa.*.