Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
2 communication » 3 communication, 4 communication, 1 communication
cs development » cns development, gas development, its development
technology 12 » technology 1.2, technology 1, technology 2
12 inflation » 10 inflation, 2 inflation, 3.2 inflation
1 afrique » l afrique, en afrique, 1 enrique
based 2 » based na, based pd
cost cs » cost lcc

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

• Adding a wildcard symbol may retrieve word variants: technology 12 inflation index based 2 communication cost cs development 1 afrique.*.