Perhaps you should try some spelling variations:
"1975 string ostensive" » "1975 strings ostensive", "1975 steering ostensive", "1975 striking ostensive", "1975 string extensive", "1975 string intensive", "1975 string offensive"
"1975 springer ostensive" » "1975 springer extensive", "1975 springer intensive", "1975 springer offensive"
"1975 spring offences" » "1975 spring offence", "1975 spring offenders"

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 ostensive") or ("1975 springer ostensive"))) or ("1975 spring offences"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("1975 string ostensive") OR ("1975 springer ostensive"))) OR ("1975 spring offences")).
• Removing quotes may allow a broader search: (((( 1975 string ostensive ) or ( 1975 springer ostensive ))) or ( 1975 spring offences )).
• Adding a wildcard symbol may retrieve word variants: (((("1975 string ostensive") or ("1975 springer ostensive"))) or ("1975 spring offences"))*.