Perhaps you should try some spelling variations:
oral communication » personal communication
developing areas » developing asia, developing east, developing a
technologien ad » technologien am, technologien und, technologien als
information can » information case, information 1, information 1.2
ad information » d information, nd information, od information
3.2 developing » 3.3 developing, 2.2 developing, 3 developing
areas access » farmers access, cartels access, markets access
costs 3.2 » costs 4.2, cost 3.2, costs 3.5
win oral » i oral, ii oral, iii oral

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

• Adding a wildcard symbol may retrieve word variants: technologien ad information can win oral communication costs 3.2 developing areas access.*.