Perhaps you should try some spelling variations:
communication skills » communication services, communication systems
voice communication » voice communications, mobile communication, device communication
do developpement » de developpement, du developpement, le developpement
developpement en » developpement et, developpement des, developpement de
formulation des » formation des, formulacion de, formulation _
more voice » more voices, moral voice, more choice
skills do » skills how, skills _, skills a
des more » does more, des mose, des modes

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

• Adding a wildcard symbol may retrieve word variants: technologies _ formulation des more voice communication skills do developpement en afrique.*.