Perhaps you should try some spelling variations:
integration theories » integration theorems, integrationstheorie 2, integration theory
shock integration » book integration, look integration, work integration
green innovation » open innovation
supply shock » supply shocks
supply green » supply great, supply driven

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( supply shock integration theories. ) or ( supply green innovation through. ))~.
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• Adding a wildcard symbol may retrieve word variants: (( supply shock integration theories. ) or ( supply green innovation through. ))*.