Perhaps you should try some spelling variations:
oral communication » personal communication
technologien aids » technologien als, technologien ad, technologien des
aids information » chandos information, series information
information sur » informations sur, information super, d'information sur
developing seas » developing areas, developing east, developing self
die oral » die moral, die orte
sur die » fur die, nur die, kur die

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

• Adding a wildcard symbol may retrieve word variants: technologien aids information sur die oral communication costs _ developing seas areas.*.