Perhaps you should try some spelling variations:
stroke communication » prone communication, spoken communication, style communication
effective learning » effective teaching, active learning, effective banking
des developpement » des developpements, de developpement, le developpement
developpement use » developpement une, developpement de, development use
learning year » learning appear
technology 3 » technology _, technology 1, technology 4
3 effective » _ effective, 5 effective, 1 effective
a des » a der, a das

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

• Adding a wildcard symbol may retrieve word variants: technology 3 effective learning year stroke communication a des developpement use africa.*.