Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
de communication » mobile communication, online communication
technologie und » technologies 2.1
und information » fund information, road information, award information
4 developing » 3 developing
developing e » developing _, developing a, developing east
e africa » em africa, de africa, eu africa
cost 4 » cost _, cost 2.4

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

• Adding a wildcard symbol may retrieve word variants: technologie und information contents _ de communication cost 4 developing e africa.*.