Perhaps you should try some spelling variations:
technologies trade » technology trade, technologies case, technologies table
oral communication » personal communication
trade information » price information, private information, trade integration
developing cases » developing based, developing cities, development cases
information i » information im, information 2, information 1
cases africa » crises africa, passes africa, rates africa
kiel oral » kiel moral
i kiel » ii kiel, _ kiel

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

• Adding a wildcard symbol may retrieve word variants: technologies trade information i kiel oral communication costs _ developing cases africa.*.