Perhaps you should try some spelling variations:
integration theories » integration theorems, integrationstheorie 2, integration theory
cooperation efforts » conservation efforts, cooperation forms, collection efforts
union cooperation » asian cooperation, functional cooperation, china cooperation
great integration » et integration, test integration, text integration
supply union » supply function, supply united, supply functions
supply great » supply growth, supply gap, supply gas

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

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