Perhaps you should try some spelling variations:
oral communication » personal communication
technologien des » technologien fur, technologien und, technologies 2
developing areas » developing asia, developing east, developing a
des information » des informations, does information, dis information
information can » information case, information 1, information 1.2
4.4 developing » 5.4 developing, 6.4 developing, 1.4 developing
areas access » farmers access, cartels access, markets access
costs 4.4 » costs 4.2
we oral » new oral, who oral, why oral

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

• Adding a wildcard symbol may retrieve word variants: technologien des information can we oral communication costs 4.4 developing areas access.*.