Perhaps you should try some spelling variations:
reintegration theories » integration theories, integration theorems, der integrationstheorie
school reintegration » school integration, social reintegration, school integrating
integration social » international social
survey school » survey tool, sydney school
supply trade » supply case

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

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