Perhaps you should try some spelling variations:
"human games periodicals." » "human gases periodicals.", "human ages periodicals.", "human homes periodicals.", "human gamers periodicals.", "human game periodicals.", "human gametes periodicals."
"humans bite periodicals." » "humans bible periodicals.", "humans suite periodicals.", "humans file periodicals.", "human bites periodicals.", "humans biting periodicals."
"humans life periodicals." » "humans chile periodicals.", "humans care periodicals.", "humans state periodicals.", "human life periodicals.", "humans like periodicals.", "humans ling 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: (((("humans bite periodicals.") OR ("humans life periodicals."))) OR ("human games periodicals."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"humans bite periodicals.\") OR (\"humans life periodicals.\"))) or (\"human games periodicals.\"))~".
• Removing quotes may allow a broader search: (((( humans bite periodicals. ) OR ( humans life periodicals. ))) or ( human games periodicals. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("humans bite periodicals.") OR ("humans life periodicals."))) or ("human games periodicals."))*.