Perhaps you should try some spelling variations:
good communication » world communication, ihrd communication, based communication
preparation costs » generation costs, preparation cycle
development rural » development moral, development cultural, development general
technologies de » technologies _, technologies 4, technologies 2
4.2 development » 3.2 development, 2.3 development, 1 development
de preparation » bed preparation, one preparation, ore preparation
rural area » rural areas
costs 20 » costs 60, costs 2.3, costs 2.1
20 good » 2 good, 24 good, 25 good

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

• Adding a wildcard symbol may retrieve word variants: technologies de preparation costs 20 good communication costs 4.2 development rural area.*.