Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
oral communication » personal communication
make information » more information, care information, age information
technology make » technology market, technology mara, technology more
information age » information storage, information access, information about
development co » development case, development china
5 development » 2 development, 3 development, 3.1 development
co afrique » en afrique, l afrique
der oral » der moral, der ort, der orte
age der » lage der, auge der, tage der
cost 5 » cost 15, cost _, cost 4

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

• Adding a wildcard symbol may retrieve word variants: technology make information age der oral communication cost 5 development co afrique.*.