Perhaps you should try some spelling variations:
class communication » mass communication, plans communication, crisis communication
integration cane » integration can, integration case, integration changed
au developpement » du developpement, de developpement, le developpement
developpement en » developpement et, developpement des, developpement de
2.1 integration » 4.1 integration, 2.2 integration, 3.1 integration
technology 2.1 » technology 2.2, technology 3.1, technology 1
cane race » age race, hand race, mine race
costs au » costs a, costs amy, costs _

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

• Adding a wildcard symbol may retrieve word variants: technology 2.1 integration cane race class communication costs au developpement en afrique.*.