Perhaps you should try some spelling variations:
integration efforts » international efforts, conservation efforts
school integration » tool integration, social integration, chain integration
aviation services » navigation services, sanitation services, abortion services
survey school » nursery school, supply school
co aviation » _ aviation, from aviation
supply co » supply cost, supply cote, supply how

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

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