Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
technologien als » technologien des, technologien fur, technologien und
de communication » mobile communication, online communication
als information » als informations, aids information, laws information
3.3 developing » 4 developing, 2 developing, 1 developing
law debate » law debates, a debate, war debate
debate de » debates de, debate we, debatte der
cost 3.3 » cost 3.2, cost 2.3, cost 3.4

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

• Adding a wildcard symbol may retrieve word variants: technologien als information law debate de communication cost 3.3 developing _ areas.*.