Perhaps you should try some spelling variations:
case international » cases international, care international, cause internationale
digital innovation » digital information, social innovation
innovation report » innovation support
supply digital » survey digital
supply case » supply cost, supply chain, supply curve

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( supply case international journal. ) or ( supply digital innovation report. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply case international journal. ) OR ( supply digital innovation report. )).
• Adding a wildcard symbol may retrieve word variants: (( supply case international journal. ) or ( supply digital innovation report. ))*.