Perhaps you should try some spelling variations:
communication network » communication networks, communications network, communications networks
site developpement » site development, de developpement, le developpement
technology debts » technology debate, technology data, technology dlt
debts informatik » debt information, der informatik, tests information
developpement de » developpement des, developpement durable
informatik der » information der, information oder, informatik und
network site » network sites, network size, network state
de afrique » de l'afrique, en afrique, l afrique

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

• Adding a wildcard symbol may retrieve word variants: technology debts informatik der does _ communication network site developpement de afrique.*.