Perhaps you should try some spelling variations:
communication costly » communication costs, communication costa, communications costs
oral communication » personal communication
development menu » development mega, development min, development manuel
costly software » costs software, complex software, control software
menu afrique » en afrique
variation 6 » variation _, variations _, variation des
der oral » der moral, der ort, der orte
6 der » _ der, 2 der, 3 der

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

• Adding a wildcard symbol may retrieve word variants: typology _ variation 6 der oral communication costly software development menu afrique.*.