Perhaps you should try some spelling variations:
"voluntary sector briefing : september 2013" » "voluntary export briefing : september 2013", "voluntary sector building : september 2013", "voluntary sector borrowing : september 2013"
"poultry sector briefing : september 2019" » "poultry sector building : september 2019", "poultry sector borrowing : september 2019"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("poultry sector briefing : september 2019") or ("voluntary sector briefing : september 2013"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("poultry sector briefing : september 2019") OR ("voluntary sector briefing : september 2013")).
• Removing quotes may allow a broader search: (( poultry sector briefing : september 2019 ) or ( voluntary sector briefing : september 2013 )).
• Adding a wildcard symbol may retrieve word variants: (("poultry sector briefing : september 2019") or ("voluntary sector briefing : september 2013"))*.