Perhaps you should try some spelling variations:
verbal communication » nonverbal communication, virtual communication, oral communication
series information » business information
developing based » development based, developing asia, developing east
information 10 » information 1, information 11, information 14
4.2 developing » 2.2 developing, 3.2 developing, 4.1 developing
based africa » cases africa, based price, based advice
das verbal » des verbal, das verbot, a verbal

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

• Performing a fuzzy search may retrieve terms with similar spellings: technology series information 10 das verbal communication costs 4.2 developing based africa.~.
• Adding a wildcard symbol may retrieve word variants: technology series information 10 das verbal communication costs 4.2 developing based africa.*.