Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
2.3 communications » 2.3 communication, 4.3 communication, 1.3 communication
development level » development local, development center, development recent
rica development » rice development, africa development, rica's development
technology die » technologie die, technology does, technology 4ir
die inflation » does inflation, der inflation, price inflation
costs rica » costa rica, costa rican, costs rise
index ai » index a, index ad, index asia
ai 2.3 » ii 2.3, ai 2.1, ai 2.2

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

• Adding a wildcard symbol may retrieve word variants: technology die inflation index ai 2.3 communications costs rica development level afrique.*.