Perhaps you should try some spelling variations:
integration efforts » international efforts, conservation efforts
generation reforms » generation records, federation reform, generation platforms
trip generation » first generation
supply trade » supply case
supply trip » supply tariff

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

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