Several search strategies:
1. and / or
2. Bring the words closer together:
w/5 = only 5 words between
w/3 - w/5 = words will appear in approximately the same phrase
w/15 = words will appear in approximately the same sentence
/p = words have to be within the same paragraph
/s = within the same segment
Was the U.S. Fish and Wildlife Service’s designation of critical habitat for the dusky gopher frog a valid exercise of its authority under the Endangered Species Act?
"dusky gopher frog" and "critical habitat"
Google Scholar - Case law
can use quotes
To answer the question:
Does the US Fish and Wildlife Service's regulation of the Utah prairie dog exceed its power under the commerce clause?
sample search strategy:
"prairie dog" commerce