Perhaps you should try some spelling variations:
communication costly » communication costs, communication costa, communications costs
oral communication » personal communication
development does » development data, development 1, development 1.1
costly software » costs software, complex software, control software
de variation » der variation, die variation, does variation
does afrique » en afrique, does africa
typology de » typology _, typology 6, typology a
ex oral » new oral

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

• Adding a wildcard symbol may retrieve word variants: typology de variation _ ex oral communication costly software development does afrique.*.