Perhaps you should try some spelling variations:
oral communication » personal communication
information 15.2 » information 1.5.2, information 1.2, information 1.3
technologien od » technologien ad, technologien und, technologien _
developing asia » development asia, developing a
od information » d information, nd information, road information
a developing » a development
asia access » basic access, basin access, asia across
15.2 when » 16.2 when, 17.2 when, 19.2 when
when oral » when formal, when coal, when goal
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technologien od information 15.2 when oral communication costs a developing asia access.*.