Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
3.1 communications » 3.1 communication, 4.1 communication, 1.1 communication
technology tools » technology thesis
tools infection » tools section
del development » model development, delta development, well development
development lin » development li, development lid, development lie
infection data » infection rate, infection rates, section data
data spaces » data sources
lin afrique » en afrique, l afrique
spaces 3.1 » spaces 1.1, spaces 2.1, space 3.1
costs del » costa del, costo del

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

• Adding a wildcard symbol may retrieve word variants: technology tools infection data spaces 3.1 communications costs del development lin afrique.*.