Perhaps you should try some spelling variations:
integration theories » integration theory, integration through, integration efforts
social integration » global integration, financial integration, regional integration
integration volume » integration policy
curve integration » care integration, fare integration, use integration

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( supply curve integration theories. ) or ( supply social integration volume. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply curve integration theories. ) OR ( supply social integration volume. )).
• Adding a wildcard symbol may retrieve word variants: (( supply curve integration theories. ) or ( supply social integration volume. ))*.