Perhaps you should try some spelling variations:
oral communication » personal communication
technologien dis » technologien des, technologien als, technologien im
information 10.4 » information 1.2, information 1.3, information 14.3
dis information » mis information, aids information, des informations
developing asia » development asia, developing a
2.2 developing » 3.2 developing, 3.3 developing, 2.2 development
asia areas » basic areas, aside areas, basin areas
10.4 book » 1.4 book, 10.4 bone
costs 2.2 » costs 4.2, costs 2.3, cost 2.2

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

• Adding a wildcard symbol may retrieve word variants: technologien dis information 10.4 book oral communication costs 2.2 developing asia areas.*.