Perhaps you should try some spelling variations:
communications costo » communications costs, communication costs, communication costa
del developpement » de developpement, des developpements, le developpement
developpement l » developpement il, developpement la, developpement de
infection data » infection rate, infection rates, section data
technology 3 » technology _, technology 1, technology 4
3 infection » _ infection, 3 injection, 4 infection
sparse data » share data
costo del » costa del, cose del, costo e
l afrique » en afrique

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

• Adding a wildcard symbol may retrieve word variants: technology 3 infection data sparse data communications costo del developpement l afrique.*.