Perhaps you should try some spelling variations:
technologie per » technologie power, technologie pret, technologie _
technologie bei » technologien bei, technologie b, technologie b8
a didactic » _ didactics
media der » media deep, media does, media d

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "media der ((technologie per) OR (technologie bei)) a didactic".
• Adding a wildcard symbol may retrieve word variants: media der ((technologie per) OR (technologie bei)) a didactic*.