Perhaps you should try some spelling variations:
"1975 spring ostensive" » "1975 spring extensive", "1975 spring intensive", "1975 spring offensive"
"1975 springer ostensive" » "1975 springer extensive", "1975 springer intensive", "1975 springer offensive"
"1975 string offences" » "1975 strings offences", "1975 steering offences", "1975 striking offences", "1975 string offence", "1975 string 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 spring ostensive") OR ("1975 springer ostensive"))) OR ("1975 string offences"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"1975 spring ostensive\") OR (\"1975 springer ostensive\"))) OR (\"1975 string offences\"))*".
• Removing quotes may allow a broader search: (((( 1975 spring ostensive ) OR ( 1975 springer ostensive ))) OR ( 1975 string offences ))*.