Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
sensors developed » less developed
inflation target » inflation targeting, inflation rate, inflation rates
risk inflation » risk information, rising inflation, risk inclination
cost sensors » iot sensors, soft sensors, gas sensors
target iv » target ids, target iop, target _
iv mass » air mass, mit mass

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

• Adding a wildcard symbol may retrieve word variants: technology risk inflation target iv mass communication cost sensors developed _ afrique.*.