Perhaps you should try some spelling variations:
communication system » communication systems, telecommunication system, communication series
technologies cohort » technologies corporate, technologies authors, technologies co
cohort formation » clot formation, cohort variation, cover formation
la communication » data communication, data communications
le developpement » de developpement, sme development
developpement en » developpement et, developpement des, developpement de
formation der » formation des, formation under, formationen der
system le » systeme le, system lm, system late
does la » does lac, does law, does a

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

• Adding a wildcard symbol may retrieve word variants: technologies cohort formation der does la communication system le developpement en afrique.*.