Perhaps you should try some spelling variations:
integration theories » integration theory, integration through, integration efforts
irrigation schemes » irrigation scheme, irrigation systems
care integration » fare integration, can integration, market integration
supply care » supply case, supply curve, supply cote
drip » drop, trip

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

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