Perhaps you should try some spelling variations:
technologies effective » technologies affect, technologies perspectives, technologien incentive
effective sanitation » effective adaptation, effective education, effective action
better communication » written communication, external communication, disaster communication
de developpement » sme development
developpement de » developpement des, developpement durable
sanitation 3 » sanitation _, sanitation a, sanitation x
does better » does matter, does greater, lives better
de afrique » de l'afrique, en afrique, l afrique
3 does » 13 does, 2 does, 4 does
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 effective sanitation 3 does better communication a de developpement de afrique.*.