Perhaps you should try some spelling variations:
communication cross » communication costs
technologien stm » technologien am, technologien im, technologien ist
de communication » mobile communication, online communication
stm information » crm information, system information, from information
c development » 2 development, 1 development, gcc development
cross c » cross _, cross 1
a areas » 1 areas, 2 areas, 4 areas
b aid » 2 aid

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 stm information ((b aid) OR (_ aid)) de communication cross c development a areas.~".
• Adding a wildcard symbol may retrieve word variants: technologien stm information ((b aid) OR (_ aid)) de communication cross c development a areas.*.