Perhaps you should try some spelling variations:
"human wastes periodicals." » "human states periodicals.", "human fishes periodicals.", "human parasites periodicals.", "human waste periodicals.", "human water periodicals.", "human gametes periodicals."
"human gamers periodicals." » "human games periodicals.", "human cameras periodicals.", "human farmers periodicals.", "human gametes periodicals.", "human cancers periodicals.", "human traders periodicals.", "human gazers periodicals.", "human geners periodicals.", "human gaitrs periodicals."
"human game periodicals." » "human games periodicals.", "human flame periodicals.", "human care periodicals.", "human gaze periodicals.", "human gene periodicals.", "human gait periodicals."

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("human gamers periodicals.") OR ("human game periodicals."))) or ("human wastes periodicals."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("human gamers periodicals.") OR ("human game periodicals."))) OR ("human wastes periodicals.")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"human gamers periodicals.\") OR (\"human game periodicals.\"))) or (\"human wastes periodicals.\"))".
• Removing quotes may allow a broader search: (((( human gamers periodicals. ) OR ( human game periodicals. ))) or ( human wastes periodicals. )).
• Adding a wildcard symbol may retrieve word variants: (((("human gamers periodicals.") OR ("human game periodicals."))) or ("human wastes periodicals."))*.