Perhaps you should try some spelling variations:
oral communication » personal communication
technologien des » technologien fur, technologien und, technologies 2
developing water » developing after, developing rates, developing waste
des information » des informations, does information, dis information
information can » information case, information 1, information 1.2
2.2 developing » 3.2 developing, 3.3 developing, 2.2 development
water accessed » water access, water stressed
costs 2.2 » costs 4.2, costs 2.3, cost 2.2
who oral » who deal
can who » man who, can why, can when

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 who oral communication costs 2.2 developing water accessed.*.