Perhaps you should try some spelling variations:
communication cross » communication costs
3.2 communication » 3 communication, 2.3 communication, de communication
den developpement » de developpement, en developpement, des developpements
technology usage » technology use, technology age, technology users
developpement du » developpement de, developpement des, developpement et
usage inflation » wage inflation, age inflation, usage information
inflation und » inflation index, inflation _, inflation tax
und prices » fund prices, land prices, bond prices
prices 3.2 » price 3.2, prices 3.1, prices 4.2
du afrique » en afrique, l afrique, de l'afrique
cross den » cross sea

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

• Adding a wildcard symbol may retrieve word variants: technology usage inflation und prices 3.2 communication cross den developpement du afrique.*.