Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
cost communications » post communication, guest communications, cell communications
infection rates » inflation rates
4 developpement » de developpement, le developpement, et developpement
technology hiv » technology have, technology high, technology how
rates price » ratio price, sales price, rates private
des afrique » en afrique, de l'afrique
price cost » private cost
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology hiv infection rates price cost communications costs 4 developpement des afrique.*.