Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
rates developing » crises developing
developing law » developing lean, developing a, developing ai
inflation tax » inflation rate, inflation _, inflation target
law afrique » l afrique
regime 4.1 » regime 14.1, regime 2.1, regime 3.1
cost rates » out rates, cost ratio, cost raws

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

• Adding a wildcard symbol may retrieve word variants: technology _ inflation tax regime 4.1 communication cost rates developing law afrique.*.