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

• Performing a fuzzy search may retrieve terms with similar spellings: (("1964 race riots in Singapore") OR ("1964 rate riots in Singapore"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"1964 race riots in Singapore\") OR (\"1964 rate riots in Singapore\"))".
• Removing quotes may allow a broader search: (( 1964 race riots in Singapore ) OR ( 1964 rate riots in Singapore )).
• Adding a wildcard symbol may retrieve word variants: (("1964 race riots in Singapore") OR ("1964 rate riots in Singapore"))*.