Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
technologien der » technologien des, technologie der, technologien fur
et communication » et communicatione, get communication, debt communication
der information » insider information, sector information, labor information
11.3 developing » 1.3 developing, 10.3 developing, 11.5 developing
contents how » content how, contents co, contents mot
developing 1 » developing _, developing a, developing e
cost 11.3 » cost 11.5, cost 4.1.3, costs 11.1
how et » how etf, how eu, how best

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

• Adding a wildcard symbol may retrieve word variants: technologien der information contents how et communication cost 11.3 developing 1 africa.*.