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: "((\"eastern bloc\") OR (((\"Eastern block\") OR (\"Eastern black\"))))~".
• Removing quotes may allow a broader search: (( eastern bloc ) OR ((( Eastern block ) OR ( Eastern black ))))~.
• Adding a wildcard symbol may retrieve word variants: (("eastern bloc") OR ((("Eastern block") OR ("Eastern black"))))*.