Perhaps you should try some spelling variations:
development country » development countries, developing country, developed country
world communication » work communication, wired communications, good communication
technologien its » technologien des, technologien als, technologien im
relations before » relations beyond, relations between
6.4 development » 2.4 development, 9.4 development, 1.4 development
its relations » its relation, les relations, its relationship
country areas » boundary areas, country access, country briefs
costs 6.4 » costs 4.4, costs 4.2, costs 2.3
before i » before _
i world » ii world, 1 world, 4 world

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

• Adding a wildcard symbol may retrieve word variants: technologien its relations before i world communication costs 6.4 development country areas.*.