Perhaps you should try some spelling variations:
"oxford handbooks online / oxford handbooks online" » "oxford handbook online / oxford handbook online", "word handbooks online / word handbooks online", "oxford guidebooks online / oxford guidebooks online", "oxford handouts online / oxford handouts online", "oxford redbooks online / oxford redbooks online", "oxford sandboxes online / oxford sandboxes online"
oxford brooks » oxford brookes, oxford book, oxford crowns
oxford books » oxford book, oxford brookes, oxford binns

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: (("oxford handbooks online / oxford handbooks online") OR ("((oxford books) OR (oxford brooks)) online / ((oxford books) OR (oxford brooks)) online")).
• Removing quotes may allow a broader search: (( oxford handbooks online / oxford handbooks online ) or ( ((oxford books) OR (oxford brooks)) online / ((oxford books) OR (oxford brooks)) online )).
• Adding a wildcard symbol may retrieve word variants: (("oxford handbooks online / oxford handbooks online") or ("((oxford books) OR (oxford brooks)) online / ((oxford books) OR (oxford brooks)) online"))*.