Perhaps you should try some spelling variations:
technological content » technological potential, technological frontier, technological change
factors communication » actors communication, fracture communication, actions communication
content formation » content information, concept formation, contents information
der developpement » de developpement, des developpements, leur developpement
developpement de » developpement des, developpement durable
time factors » side factors, five factors, three factors
de africa » does africa, de america, use africa
a der » _ der, 2 der, 3 der

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

• Adding a wildcard symbol may retrieve word variants: technological content formation _ time factors communication a der developpement de africa.*.