Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
sensors developed » less developed
technology role » technology's role, technology risk, technology r
inflation rates » inflation rate
role inflation » core inflation, rate inflation, price inflation
cost sensors » iot sensors, soft sensors, gas sensors
rates iv » rates irs, states iv, rates _
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 role inflation rates iv mass communication cost sensors developed _ afrique.*.