Perhaps you should try some spelling variations:
infection ratio » infection rates, infection rate, infection data
i communication » ii communication, ai communication, 3 communication
development lie » development life, development li, development lid
technology gap » technology 1, technology 2.2, technology 3
gap infection » lato infection, pain infection, past infection
e development » sme development, mine development, site development
ratio price » option price
lie afrique » l afrique
price i » price bi, price _, price 3
costs e » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technology gap infection ratio price i communication costs e development lie afrique.*.