Perhaps you should try some spelling variations:
communication from » communication 3, communication 1, communication 3.3
2.2 communication » 2.3 communication, 3.2 communication, 2.7 communication
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
infection data » infection rate, infection rates, section data
technology 3 » technology _, technology 1, technology 4
3 infection » _ infection, 3 injection, 4 infection
data scarce » data source, data sparse, data sources
scarce 2.2 » source 2.2, scale 2.2
from de » from dem, from deep

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

• Adding a wildcard symbol may retrieve word variants: technology 3 infection data scarce 2.2 communication from de developpement en afrique.*.