Perhaps you should try some spelling variations:
communication class » communication cross, communication case, communication crisis
demand development » demand developments, delayed development, germany development
development cities » development citizen, development critics, development series
integration 3.4.2 » integration 2.4.2, integration 3.1.2, integration 3.4.1
do communication » do communications, de communication, ngo communication
technologies re » technologies ret, technologies art, technologies _
re integration » de integration, fare integration, care integration
class demand » class germany, class ireland, gas demand
3.4.2 does » 13.2.2 does, 3.4.2 die, 3.4.2 der
cities i » cities _, cities a, cities 3
does do » does de, does d, does fdi

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

• Adding a wildcard symbol may retrieve word variants: technologies re integration 3.4.2 does do communication class demand development cities i.*.