Perhaps you should try some spelling variations:
hygiene communication » science communication, online communication, patient communication
de developpement » sme development
developpement il » developpement de, developpement et, developpement du
technologies 1 » technologies _, technologies 4, technologies 2
2.3 hygiene » 20 hygiene, 3.6 hygiene
il afrique » l afrique, en afrique
table 2.3 » table 2.1, table 6.3, table 1.3
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 2.3 hygiene communication a de developpement il afrique.*.