Perhaps you should try some spelling variations:
mass communications » mass communication, data communications, crisis communications
communications law » communications a, communications _, telecommunications law
le developpement » de developpement, sme development
developpement en » developpement et, developpement des, developpement de
des validation » does validation, de validation, test validation
validation bei » validation des, validation de, validation ii
topologie des » typologie des, topologie der, typologie der
den mass » en masse, den mann, den mso
bei den » bei der

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

• Adding a wildcard symbol may retrieve word variants: topologie des validation bei den mass communications law le developpement en afrique.*.