Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
gdp communication » de communication, amp communication, up communication
technologien ids » technologien des, technologien als, technologien im
information case » information based, information can, information costs
ids information » aids information, dis information, mis information
3.3 developing » 4 developing, 2 developing, 1 developing
case debt » rate debt, case des
cost 3.3 » cost 3.2, cost 2.3, cost 3.4

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

• Adding a wildcard symbol may retrieve word variants: technologien ids information case debt gdp communication cost 3.3 developing _ areas.*.