Perhaps you should try some spelling variations:
"online rand research OR card research documents" » "online brand research OR card research documents", "online range research OR card research documents", "online ad research OR card research documents", "online rand research OR care research documents", "online rand research OR based research documents"
"online rand search document" » "online brand search document", "online band search document", "online hand search document", "online random search document", "online ranked search document", "online range search document"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"online ((rand research) OR (card research)) documents\") OR (\"online rand search document\"))".
• Removing quotes may allow a broader search: (( online ((rand research) OR (card research)) documents ) OR ( online rand search document )).
• Adding a wildcard symbol may retrieve word variants: (("online ((rand research) OR (card research)) documents") OR ("online rand search document"))*.