Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
el communication » cell communication, real communication, 3 communication
technologien ad » technologien am, technologien und, technologien als
ad information » d information, nd information, od information
2.4 developing » 12.4 developing, 2.2 developing, 5.4 developing
contents 1.3 » contents 1.1, contents 2.3, contexts 1.3
developing v » developing av, developing _, developing a
v africa » 1 africa, em africa
1.3 el » 2.3 el, 3.3 el

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

• Adding a wildcard symbol may retrieve word variants: technologien ad information contents 1.3 el communication cost 2.4 developing v africa.*.