Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
use communication » une communication, de communication, causes communication
child development » world development
innovation about » innovation around, innovation act, innovation along
technology 21st » technology 2.1.1, technology 2.1.2, technology 2.1.3
21st innovation » cost innovation, 2.1.5 innovation, costs innovation
development li » development lid, development lie, development lin
cost child » boost child, cbt child, out child
li afrique » l afrique, en afrique
about can » about care, about bank, about a

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

• Adding a wildcard symbol may retrieve word variants: technology 21st innovation about can use communication cost child development li afrique.*.