Perhaps you should try some spelling variations:
integration series » integration theories, integrating services, integration schemes
chain integration » trade integration, data integration, grid integration
crowd irrigation » crop irrigation, flood irrigation, from irrigation
supply crowd » supply growth, supply cost, supply how
systems. » system.

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 series. ) or ( supply crowd irrigation systems. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply chain integration series. ) OR ( supply crowd irrigation systems. )).
• Adding a wildcard symbol may retrieve word variants: (( supply chain integration series. ) or ( supply crowd irrigation systems. ))*.