Perhaps you should try some spelling variations:
technologien aux » technologien auf, technologien fur, technologien als
aux informations » a informations, als informations, neue informations
informations ich » informations och, informations und, informations sur
developing 2.1 » developing _, developing a, developing e
2.1 areas » 2.10 areas, 2.1 area, 2.4 areas
die 1 » die 10, die _, die e
die 4 » die _, die e

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 aux informations ich ((die 1) OR (die 4)) communication costs _ developing 2.1 areas.~".
• Adding a wildcard symbol may retrieve word variants: technologien aux informations ich ((die 1) OR (die 4)) communication costs _ developing 2.1 areas.*.