Perhaps you should try some spelling variations:
development policies » development policy, development projects
communication tres » communication three, communication trust, communication tools
de communication » mobile communication, online communication
tres a » trees a, trest a, autres a
gap a » gap _, gas a, gap 4
a de » a die, a der, a des
africanism. » africans.

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information gap a de communication tres a development policies africanism.*.