Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
1.1 communication » 4.1 communication, 1.3 communication, 1.4 communication
inflation spaces » innovation spaces, inflation rates, inflation taxes
spaces spaces » space spaces, places spaces, space space
envelopment l » development li, development 1
technology d » technology 1, technology 3, technology 4
d inflation » _ inflation, 2 inflation, 6 inflation
spaces 1.1 » spaces 2.1
cost data » test data
l afrique » en afrique

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

• Adding a wildcard symbol may retrieve word variants: technology d inflation spaces spaces 1.1 communication cost data envelopment l afrique.*.