Perhaps you should try some spelling variations:
oral communication » personal communication
trade development » software development
development la » development law, development li, development land
typologien de » typologien der, typologie des, typologie der
de variation » der variation, die variation, does variation
media trade » media matrade, medical trade, india trade
la afrique » l afrique, la fabrique, en afrique
6 sex » _ sex, 4 sex, a sex
6 ex » _ ex, 1 ex, 4 ex

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "typologien de variation ((6 ex) OR (6 sex)) oral communication media trade development la afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologien de variation ((6 ex) OR (6 sex)) oral communication media trade development la afrique.*.