Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
technology 2.1.2 » technology 2.1.1, technology 2.1.3, technology 2.2.2
rice development » mine development, site development, service development
2.1.2 inflation » 2.2.4 inflation, 2.3.1 inflation, 2.2.2.2 inflation
4 communication » 3 communication, 5.4 communication, de communication
inflation das » inflation bias, inflation tax, inflation a
development l » development li, development 1, development law
cost rice » cost price, most rice, costa rica
l afrique » en afrique
das case » das coase, das cafe, das close
case 4 » case 1, case 2, case 3

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

• Adding a wildcard symbol may retrieve word variants: technology 2.1.2 inflation das case 4 communication cost rice development l afrique.*.