Perhaps you should try some spelling variations:
communication class » communication cross, communication case, communication crisis
demand development » demand developments, delayed development, germany development
integration 2.2.2 » integration 2.3.2, integration 2.4.2, integration 2.5.2
do communication » do communications, de communication, ngo communication
development what » development work, development 1
technologie der » technologie de, technologien des, technologies de
der integration » zur integration, sector integration
class demand » class germany, class ireland, gas demand
2.2.2 does » 2.2.2 des, 7.2.2 does, 13.2.2 does
does do » does de, does d, does fdi
what i » what _, what a, what did

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

• Adding a wildcard symbol may retrieve word variants: technologie der integration 2.2.2 does do communication class demand development what i.*.