Perhaps you should try some spelling variations:
device communication » services communication, voice communication, mobile communication
de developpement » sme development
action series » education series
typologie de » typologie des, typologie der, typologien der
series bias » series based
bias device » final device
des afrique » en afrique, de l'afrique
de action » de accion, de l'action, done action
a de » a die, a der, a des

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

• Adding a wildcard symbol may retrieve word variants: typologie de action series bias device communication a de developpement des afrique.*.