Perhaps you should try some spelling variations:
collaborative studies » collaboration studies, collaborative series, collaborative study
collaborative working » collaborative work, collaborative writing, collaborative learning
sweetland digital » stand digital
digital rhetoric » digital record, digital theorien, visual rhetoric

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

• If you are trying to use Boolean operators, they must be ALL CAPS: sweetland digital rhetoric ((collaborative studies) OR (collaborative working))~.
• Adding a wildcard symbol may retrieve word variants: sweetland digital rhetoric ((collaborative studies) or (collaborative working))*.