Perhaps you should try some spelling variations:
"online card research documents" » "online card research arguments", "online card research catchments", "online card research students", "online care research documents", "online based research documents", "online car research documents", "online case research documents"
"online card research comments" » "online card research commons", "online card research contents", "online card research commentary", "online care research comments", "online based research comments", "online car research comments", "online case research comments"
"online ranked search document" » "online ranking search document", "online brand search document", "online ramsey search document", "online range search document", "online based search document", "online random search document"
"online rand search document" » "online brand search document", "online band search document", "online hand search document", "online random search document", "online rand research document", "online range search document"

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