Perhaps you should try some spelling variations:
communication based » communication united, communication brazil, communication barriers
child development » world development
3 communication » 4 communication, de communication, data communication
technologies 3 » technologies _, technologies 4, technologies 2
formulation do » formulation de, formulation du, formulation des
3 formulation » _ formulation, _ formulating
1 afrique » l afrique, en afrique, 1 enrique
do dogs » do does
dogs 3 » dogs _, dog 3, dogs 2

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

• Adding a wildcard symbol may retrieve word variants: technologies 3 formulation do dogs 3 communication based child development 1 afrique.*.