Perhaps you should try some spelling variations:
technology change » technological change, technological changes
change infection » change infectious, exchange injection, change intentions
de communication » mobile communication, online communication
mine development » sme development, trade development, business development
infection data » infection rate, infection rates, section data
development et » development east, developpement et, development eco
data space » data spaces, data sparse, data scarce
costs mine » costs money, costs timing
et afrique » en afrique, l afrique
space de » espace de, space die, space dead

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 de communication costs mine development et afrique.*.