Perhaps you should try some spelling variations:
communication first » communication fast, communication from, communication five
oral communication » personal communication
source development » resource development, resources development, commerce development
2 transformations » _ transformations, 9 transformations, 2 transformation
development case » development china
technologies 2 » technologies _, technologies 4
first source » fire source, first course, first survey
der oral » der moral, der ort, der orte
case 3 » case 1, case 2

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies 2 transformations _ der oral communication first source development case 3.~.
• Adding a wildcard symbol may retrieve word variants: technologies 2 transformations _ der oral communication first source development case 3.*.