Perhaps you should try some spelling variations:
collaborative working » collaborative work, collaborative writing, collaborative learning
collaborative series » collaborative services, collaborative studies, collaborative agencies
digital rhetoric » digital record, digital theorien, visual rhetoric
stand digital » state digital, second digital, uganda digital

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

• Performing a fuzzy search may retrieve terms with similar spellings: stand digital rhetoric ((collaborative series) or (collaborative working))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: stand digital rhetoric ((collaborative series) OR (collaborative working)).
• Adding a wildcard symbol may retrieve word variants: stand digital rhetoric ((collaborative series) or (collaborative working))*.