Perhaps you should try some spelling variations:
line developpement » le developpement, line development, mine development
technology change » technological change, technological changes
change infection » change infectious, exchange injection, change intentions
developpement en » developpement et, developpement des, developpement de
4 communication » 3 communication, 5.4 communication, de communication
infection data » infection rate, infection rates, section data
data space » data spaces, data sparse, data scarce
costs line » costs linked, costs land, costs longer
space 4 » space _, space a, space 1

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

• Adding a wildcard symbol may retrieve word variants: technology change infection data space 4 communication costs line developpement en afrique.*.