Perhaps you should try some spelling variations:
communication services » telecommunications services
nps communication » nps communications, nets communication, c's communication
use developpement » de developpement, le developpement, use development
developpement en » developpement et, developpement des, developpement de
et evaluation » 1 evaluation, post evaluation, budget evaluation
typologie et » typologie des, typologie der, typologie von
services use » service use, services und, service users
die nps » die nis, die npth

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

• Adding a wildcard symbol may retrieve word variants: typologie et evaluation _ die nps communication services use developpement en afrique.*.