Perhaps you should try some spelling variations:
infection ratio » infection rates, infection rate, infection data
3 communication » 4 communication, de communication, data communication
development lin » development li, development lid, development lie
technology 4 » technology _, technology 1, technology 3
4 infection » 4 infections, _ infection, 8 infection
ratio price » option price
lin afrique » en afrique, l afrique
price 3 » price _, price a, price 2.3
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology 4 infection ratio price 3 communication costs a development lin afrique.*.