Perhaps you should try some spelling variations:
technologies economics » technology economics, technology economic
economics information » economic information, economic transformation, economics international
communication 5.5 » communication 3.3, communication 2.4, communication 3.2
de communication » mobile communication, online communication
le developpement » de developpement, sme development
developpement en » developpement et, developpement des, developpement de
information und » informations und
und fe » und fed, und feld, und fehl
5.5 le » 1.5 le, 5.5 l2, 5.2.5 le
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 5.5 le developpement en afrique.*.