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 handbuch » oxford handbook
"Oxford handbuch online / Oxford handbuch online" » "Oxford handbuch eine / Oxford handbuch eine"
"oxford books online / oxford books online" » "oxford brooks online / oxford brooks online", "oxford book online / oxford book online", "oxford brookes online / oxford brookes online"

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