Perhaps you should try some spelling variations:
technologien ad » technologien am, technologien und, technologien als
formation phase » formation chapter
e communication » de communication, 1 communication, une communication
ad formation » a formation, band formation, load formation
phase i » phase 1, phase _, phase 2
2 areas » 1 areas, 2 areal, 2.1 areas
4 areas » 1 areas, 4 areal, 3.4 areas

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: "technologien ad formation phase i e communication costs _ developing ((2 areas) OR (4 areas)).~".
• Adding a wildcard symbol may retrieve word variants: technologien ad formation phase i e communication costs _ developing ((2 areas) OR (4 areas)).*.