Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
coal communication » moral communication, oral communication, cell communication
technologien und » technologie und, technologien des, technologien fur
development last » development east, development fast, development lant
und information » fund information, road information, award information
information 2.1 » information 12.1, information 2.2, information 2.7
3.2 development » 1 development, mena development
last accessed » all accessed
when coal » when goal, women coal, when can
2.1 when » 4.1 when, 6.1 when, 2.2 when
cost 3.2 » 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 und information 2.1 when coal communication cost 3.2 development last accessed.*.