Perhaps you should try some spelling variations:
1990 communication » 10 communication, 19 communication, 1 communication
river development » driven development, water development, power development
development case » development china
technology can » technology change, technology 1, technology 2.2
function bias » truncation bias, function based, function a
can function » c function, cantor function, main functions
bias policy » ias policy, biased policy, gas policy
policy 1990 » policy 10
costs river » costs drivers, costs over, costs rise
case aortic » acute aortic

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

• Adding a wildcard symbol may retrieve word variants: technology can function bias policy 1990 communication costs river development case aortic.*.