Perhaps you should try some spelling variations:
integration theories » integration theory, integration through, integration reforms
integration efforts » international efforts, conservation efforts
chain integration » trade integration, data integration, grid integration
cargo integration » care integration, fare integration, can integration
export cargo » export crop, export ratio

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

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