Perhaps you should try some spelling variations:
oral communication » personal communication
technologien road » technologien ad, technologien und, technologien am
information costs » information contents, information centers, information content
developing basin » developing asia, developing asian, developing based
4 developing » 3 developing
basin areas » basin area, basic areas, base areas
costs des » costs fees
des oral » des moral, des oil, des orts
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologien road information costs des oral communication costs 4 developing basin areas.*.