Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
oral communication » personal communication
technologien fur » technologien des, technologien und, technologies 2
information case » information based, information can, information costs
fur information » zur information, fair information, your information
developing asia » development asia, developing a
2.2 developing » 3.2 developing, 3.3 developing, 2.2 development
asia access » basic access, basin access, asia across
case when » cases when, care when, case women
when oral » when formal, when coal, when goal
cost 2.2 » costs 2.2, cost 2.4, cost 3.2

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

• Adding a wildcard symbol may retrieve word variants: technologien fur information case when oral communication cost 2.2 developing asia access.*.