Perhaps you should try some spelling variations:
hygiene communication » science communication, online communication, patient communication
de developpement » sme development
developpement l » developpement il, developpement la, developpement de
technologies 1 » technologies _, technologies 4, technologies 2
20 hygiene » _ hygiene, do hygiene
l afrique » en afrique
table 20 » table 2, table 10, table 2a
a de » a die, a der, a des

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

• Adding a wildcard symbol may retrieve word variants: technologies 1 information table 20 hygiene communication a de developpement l afrique.*.