Perhaps you should try some spelling variations:
integration theories » integration theorems, integrationstheorie 2, integration theory
integration some » integration south, integration soziale, integration social
supply school » supplies school, support school, supply shock
supply grid » supply crowd, supply great, support grid
supply tool » support tool, supply donor

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( supply grid integration some. ) or ( ((supply tool) OR (supply school)) integration theories. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply grid integration some. ) OR ( ((supply tool) OR (supply school)) integration theories. )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( supply grid integration some. ) or ( ((supply tool) OR (supply school)) integration theories. ))".
• Adding a wildcard symbol may retrieve word variants: (( supply grid integration some. ) or ( ((supply tool) OR (supply school)) integration theories. ))*.