Perhaps you should try some spelling variations:
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
acd developpement » au developpement, de developpement, le developpement
developpement en » developpement et, developpement des, developpement de
infection data » infection rate, infection rates, section data
technology 8 » technology _, technology 1, technology 3
8 infection » _ infection, 4 infection, 8 injection
data spaces » data sources
efforts acd » efforts amid, efforts old, efforts data
spaces 6.2 » spaces 4.2, spaces 1.1, spaces 2.1

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

• Adding a wildcard symbol may retrieve word variants: technology 8 infection data spaces 6.2 communication efforts acd developpement en afrique.*.