Perhaps you should try some spelling variations:
technologies economics » technology economics, technology economic
economics information » economic information, economic transformation, economics international
communication 5.2.5 » communication 4.2.5, communication 5.2.1, communication 7.5.2.5
de communication » mobile communication, online communication
le developpement » de developpement, sme development
information und » informations und
developpement l » developpement il, developpement la, developpement de
l afrique » en afrique
5.2.5 le » 5.2.3 le, 5.2.1 le, 5.2.2 le
und fe » und fed, und feld, und fehl
fe de » e de, me de

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

• Adding a wildcard symbol may retrieve word variants: technologies economics information und fe de communication 5.2.5 le developpement l afrique.*.