Perhaps you should try some spelling variations:
communication costly » communication costs, communication costa, communications costs
3.2 communication » 3 communication, 2.3 communication, de communication
than development » chain development, town development, plan development
based inflation » cases inflation, based information, based innovation
inflation state » inflation starts, inflation rate, simulation state
development li » development lid, development lie, development lin
costly than » costly trade
li afrique » l afrique, en afrique
space 3.2 » space 2.1

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

• Adding a wildcard symbol may retrieve word variants: technology based inflation state space 3.2 communication costly than development li afrique.*.