Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
information letter » information center, information centers, information chapter
technologien dis » technologien des, technologien als, technologien im
ec communication » de communication, 3 communication, 4 communication
dis information » mis information, aids information, des informations
2.2 developing » 3.2 developing, 3.3 developing, 2.2 development
letter words » letter word, better world, better work
developing a » developing _
words ec » words ben, words _, words 3
cost 2.2 » costs 2.2, cost 2.4, cost 3.2
a africa » 1 africa, can africa, em africa

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

• Adding a wildcard symbol may retrieve word variants: technologien dis information letter words ec communication cost 2.2 developing a africa.*.