Perhaps you should try some spelling variations:
technologies case » technologies based, technologies can, technologies create
formulation cover » formulation over, formation over, formulation model
der developpement » de developpement, des developpements, leur developpement
case formulation » basic formulation, chain formulation, space formulation
e communication » de communication, 1 communication, une communication
developpement l » developpement il, developpement la, developpement de
networks der » networks under, networks deep, networks gender
cover does » cover die, cover das, cover der
l afrique » en afrique
does e » does de, does _, does a

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

• Adding a wildcard symbol may retrieve word variants: technologies case formulation cover does e communication networks der developpement l afrique.*.