Perhaps you should try some spelling variations:
verbal communication » nonverbal communication, virtual communication, oral communication
trade development » software development
development i150 » development 1, development 1.1, development 1.5
variablen guns » variablen und, variablen aus, variablen fur
typologie der » typologie des, ideologie der
es verbal » des verbal, _ verbal, 3 verbal
guns es » guns does

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

• Adding a wildcard symbol may retrieve word variants: typologie der variablen guns es verbal communication _ trade development i150 afrique.*.