Perhaps you should try some spelling variations:
"online rand research documents" » "online rand research arguments", "online rand research comments", "online rand research catchments", "online brand research documents", "online card research documents", "online ad research documents", "online band research documents", "online hand research documents"
"online range research documents" » "online range research arguments", "online range research comments", "online range research catchments", "online change research documents", "online large research documents", "online range search documents", "online ring research documents", "nonlinear range research documents"
"online ranking search document" » "online banking search document", "online tracking search document", "online making search document", "online adding search document", "online enhancing search document"
"online ranked search document" » "online brand search document", "online ramsey search document", "online banks search document", "online random search document"
"online based search document" » "line based search document", "spline based search document", "online band search document", "online based research 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 rand research documents") OR ("online range research documents"))) OR ((((("online ranked search document") OR ("online ranking search document"))) OR ("online based search document")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"online rand research documents\") OR (\"online range research documents\"))) or (((((\"online ranked search document\") or (\"online ranking search document\"))) or (\"online based search document\"))))".
• Removing quotes may allow a broader search: (((( online rand research documents ) OR ( online range research documents ))) or ((((( online ranked search document ) or ( online ranking search document ))) or ( online based search document )))).
• Adding a wildcard symbol may retrieve word variants: (((("online rand research documents") OR ("online range research documents"))) or ((((("online ranked search document") or ("online ranking search document"))) or ("online based search document"))))*.