Perhaps you should try some spelling variations:
traps developpement » trade developement, trap development, trade development
oral communication » personal communication
developpement en » developpement et, developpement des, developpement de
ideologie der » ideologie und, typologie der
der variation » de variation, does variation, die variation
costs traps » costs trade
2 oral » _ oral, 4 oral

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

• Adding a wildcard symbol may retrieve word variants: ideologie der variation _ 2 oral communication costs traps developpement en afrique.*.