Perhaps you should try some spelling variations:
"1975 string offensive" » "1975 spring offensive", "1975 steering offensive", "1975 string defensive", "1975 string offense", "1975 string ostensive"
"1975 strings offensive" » "1975 springs offensive", "1975 steerings offensive", "1975 strings defensive", "1975 strings offense", "1975 strings ostensive", "1975 settings offensive"
"1975 striking offensive" » "1975 striking defensive", "1975 striking offense", "1975 striking ostensive", "1975 shrinking offensive"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("1975 string offensive") OR ("1975 striking offensive"))) or ("1975 strings offensive"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("1975 string offensive") OR ("1975 striking offensive"))) OR ("1975 strings offensive")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"1975 string offensive\") OR (\"1975 striking offensive\"))) or (\"1975 strings offensive\"))".
• Removing quotes may allow a broader search: (((( 1975 string offensive ) OR ( 1975 striking offensive ))) or ( 1975 strings offensive )).
• Adding a wildcard symbol may retrieve word variants: (((("1975 string offensive") OR ("1975 striking offensive"))) or ("1975 strings offensive"))*.