Perhaps you should try some spelling variations:
des developpements » deux developpements, de developpement, et developpements
2.3 communication » 3.2 communication, de communication, 4 communication
developpements en » developpement en, developpement et, developpements de
communication 3 » communication _, communication a
technology has » technology hard, technology have, technology how
infection data » infection rate, infection rates, section data
has infection » past infection, hiv infection, has inflation
data scarce » data source, data sparse, data sources
scarce 2.3 » source 2.3, scarce 3
3 des » 3 der, 3 das, a des

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

• Adding a wildcard symbol may retrieve word variants: technology has infection data scarce 2.3 communication 3 des developpements en afrique.*.