Perhaps you should try some spelling variations:
"single-loops reflex cameras / handbooks, manual, etc" » "single-loop reflexes cameras / handbooks, manual, etc", "single-loops refresh cameras / handbooks, manual, etc", "single-loops review cameras / handbooks, manual, etc", "single-loops reflex camera / handbooks, manual, etc"
"single-less reflex cameras / handbooks, manual, etc" » "single-bass reflex cameras / handbooks, manual, etc", "single-versus reflex cameras / handbooks, manual, etc", "single-less reflex camera / handbooks, manual, etc"
"single-lens reflex cameras / handbooks, manual, etc" » "single-les reflex cameras / handbooks, manual, etc", "single-lens reflex camera / handbooks, manual, etc"

Try widening your search to All Fields.

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("single-lens reflex cameras / handbooks, manual, etc") OR ("single-less reflex cameras / handbooks, manual, etc"))) OR ("single-loops reflex cameras / handbooks, manual, etc")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"single-lens reflex cameras / handbooks, manual, etc\") OR (\"single-less reflex cameras / handbooks, manual, etc\"))) or (\"single-loops reflex cameras / handbooks, manual, etc\"))".
• Removing quotes may allow a broader search: (((( single-lens reflex cameras / handbooks, manual, etc ) OR ( single-less reflex cameras / handbooks, manual, etc ))) or ( single-loops reflex cameras / handbooks, manual, etc )).
• Adding a wildcard symbol may retrieve word variants: (((("single-lens reflex cameras / handbooks, manual, etc") OR ("single-less reflex cameras / handbooks, manual, etc"))) or ("single-loops reflex cameras / handbooks, manual, etc"))*.