Perhaps you should try some spelling variations:
modernes communications » modern communications, modern communication, internet communications
communications costs » communication costs, communications _
relations between » relation between, relationship between, relationships between
technologien 4 » technologien _, technologien 1, technologien 5
3.1 developing » 3.3 developing, 3.2 developing, 4.1 developing
und modernes » und moderne, und moderner, und modern
4 relations » 3 relations, 4 relation, 1 relations
between und » between usd, between sound, between bond
costs 3.1 » costs 3.5, costs 4.1, costs 2.1

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

• Adding a wildcard symbol may retrieve word variants: technologien 4 relations between und modernes communications costs 3.1 developing _ arenas.*.