Perhaps you should try some spelling variations:
sanitation activities » sanitation facilities, sanitation utilities, education activities
development urban » development bank, development band, development update
safe sanitation » water sanitation, basic sanitation
led development » land development, based development, road development
activities led » activities based, activities blue, activities _
innovations a » innovations _, innovations china, innovations japan
urban africa » urban area
de safe » de saxe, de sante, de saude
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: technology _ innovations a de safe sanitation activities led development urban africa.*.