Perhaps you should try some spelling variations:
volunteer across » volunteers across, volunteering across, volunteering cross
counter macros » counter marches, counter masses, counter measures
across brief » across barrier, across border, across darien
macros brief » macros built

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( volunteer across brief-sloop ) OR ((( counter macros brief-sloop ) OR ( counter macros mit-sloop )))).
• Adding a wildcard symbol may retrieve word variants: (( volunteer across brief-sloop ) or ((( counter macros brief-sloop ) or ( counter macros mit-sloop ))))*.