Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
technologien mis » technologien mit, technologien des, technologien als
de communication » mobile communication, online communication
mis information » dis information, aids information, ids information
information can » information case, information 1, information 1.2
4 developing » 3 developing
developing 4 » developing _, developing a, developing e
can debt » bank debt, card debt, loan debt
debt de » debt do, debt debt, debt gdp
4 areas » 1 areas, 2 areas, 4 areal
cost 4 » cost _, cost 2.4

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

• Adding a wildcard symbol may retrieve word variants: technologien mis information can debt de communication cost 4 developing 4 areas.*.