Perhaps you should try some spelling variations:
communication paper » communication power, communication pattern, communication partner
leur developpement » le developpement, deux developpements, de developpement
2.5 communication » 2.3 communication, 2.7 communication, 3.5 communication
developpement de » developpement des, developpement durable
technology die » technologie die, technology does, technology 4ir
die inflation » does inflation, der inflation, price inflation
inflation tax » inflation rate, inflation _, inflation target
tax prices » gas prices, car prices, tax practices
prices 2.5 » prices 2.4, prices 2.1, prices 2.3

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

• Adding a wildcard symbol may retrieve word variants: technology die inflation tax prices 2.5 communication paper leur developpement de l'afrique.*.