Perhaps you should try some spelling variations:
device communication » services communication, voice communication, mobile communication
de developpement » sme development
action serial » action series, action social, actions special
typologie de » typologie des, typologie der, typologien der
des afrique » en afrique, de l'afrique
serial bus » serial bonds, serial debug
bus device » bus service, vs device, bus services
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 serial bus device communication a de developpement des afrique.*.