Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
4.2 communications » 4.2 communication, 3.2 communication, 6.2 communication
mental development » mineral development, capital development, spatial development
risk inflation » risk information, rising inflation, risk inclination
inflation data » inflation rate, infection data, inflation das
development li » development lid, development lie, development lin
costs mental » costs meat, costs rent
data space » data spaces, data sparse, data scarce
li afrique » l afrique, en afrique
space 4.2 » space 3.2, space 2.2, space 4.3

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

• Adding a wildcard symbol may retrieve word variants: technology risk inflation data space 4.2 communications costs mental development li afrique.*.