Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
et communication » et communicatione, get communication, debt communication
technologie nd » technologie und, technologie 3d, technologien und
nd information » und information, d 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
1.3 et » 1.3 el, 1.3 ea, 1.3 ed

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

• Adding a wildcard symbol may retrieve word variants: technologie nd information contents 1.3 et communication cost 2.4 developing _ africa.*.