Perhaps you should try some spelling variations:
"brain trusts periodicals." » "brain pests periodicals.", "brain trials periodicals.", "brain coasts periodicals.", "brain trust periodicals.", "iras trusts periodicals.", "brain turns periodicals."
"bass trucks periodicals." » "bass trials periodicals.", "bass ethics periodicals.", "bass works periodicals.", "buses trucks periodicals.", "cars trucks periodicals."
"basic arts periodicals." » "basic aspects periodicals.", "basic abstracts periodicals.", "basic parts periodicals."

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: (((("brain trusts periodicals.") OR ("bass trucks periodicals."))) OR ("basic arts periodicals."))~.
• Removing quotes may allow a broader search: (((( brain trusts periodicals. ) or ( bass trucks periodicals. ))) or ( basic arts periodicals. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("brain trusts periodicals.") or ("bass trucks periodicals."))) or ("basic arts periodicals."))*.