Perhaps you should try some spelling variations:
integration theories » integration theorems, integrationstheorie 2, integration theory
irrigation schemes » irrigation scheme, irrigation systems
fare irrigation » farm irrigation, large irrigation, scale irrigation
can integration » chain integration, von integration, urban integration
supply fare » supply farm, supply case, supply figure
supply can » supply chain, supply case, supply chai

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

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