Perhaps you should try some spelling variations:
"socialist periodical reports" » "socialism periodicals reports", "socialist period reports", "socialist political reports", "socialist periodical returns", "socialist periodic report", "socialist periodical record"
"special period returns" » "imperial period returns", "special periodical returns"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"socialist periodical reports\") OR (\"special period returns\"))".
• Removing quotes may allow a broader search: (( socialist periodical reports ) OR ( special period returns )).
• Adding a wildcard symbol may retrieve word variants: (("socialist periodical reports") OR ("special period returns"))*.