Perhaps you should try some spelling variations:
integration efforts » international efforts, conservation efforts
testing services » existing services, lending services, training services
covid testing » food testing, load testing, board testing
supply covid » supply cold, supply soviet, supply chain
supply case » supply cost, supply chain, supply curve

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) or (supply case)) integration efforts. ) or ( supply covid testing services. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( ((supply trade) OR (supply case)) integration efforts. ) OR ( supply covid testing services. )).
• Adding a wildcard symbol may retrieve word variants: (( ((supply trade) or (supply case)) integration efforts. ) or ( supply covid testing services. ))*.