Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
open development » clean development, driven development, human development
development rate » development create, development route, development water
technologies e » technologies et, technologies _, technologies 4
information 14 » information 1, information 11, information 24
e information » e informacion, age information, die information
rate african » ratha african, rates africa, name african
death risk » health risk, heat risk, health risks
cost open » post open
14 death » 19 death, 1 death, 10 death

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

• Adding a wildcard symbol may retrieve word variants: technologies e information 14 death risk communication cost open development rate african.*.