Perhaps you should try some spelling variations:
oral communication » personal communication
technologien als » technologien des, technologien fur, technologien und
als information » als informations, aids information, laws information
2.1 development » 3.1 development, 2.3 development, 2.2 development
development can » development case, development co, development canada
information 2 » information 3
can africa » urban africa
knew oral » knew moral, new oral, new moral
costs 2.1 » costs 2.3, costs 4.1, costs 2.2
2 knew » 2 know, i knew

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

• Adding a wildcard symbol may retrieve word variants: technologien als information 2 knew oral communication costs 2.1 development can africa.*.