Perhaps you should try some spelling variations:
integration theories » integration theorems, integrationstheorie 2, integration theory
eu integration » deep integration, die integration, data integration
codes banking » modern banking, class banking, codes anhang
supply codes » supply costs, supply sides, supply cote
support eu » support _, support a, support 4

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

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