Perhaps you should try some spelling variations:
activists transformed » cities transformed, crisis transformed
lesson transforming » lean transforming, learn transforming, region transforming
transforming river » transforming rivers, transforming lives, transforming civil
river across » lives across, ride across, differ across
10 activists » _ activists, 1 activist, all activists
key lesson » key lessons
ideas key » ideas de, ideas en, ideas led
ages 10 » ages 100, ages 105, ages 1

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( ideas key lesson transforming river across ) OR ( ages 10 activists transformed _ coda ))~.
• Adding a wildcard symbol may retrieve word variants: (( ideas key lesson transforming river across ) or ( ages 10 activists transformed _ coda ))*.