Perhaps you should try some spelling variations:
"online rand research arguments" » "online rand research catchments", "online rand research students", "online rand research elements", "online brand research arguments", "online range research arguments", "online card research arguments", "online band research arguments", "online hand research arguments"
"online ranked search document" » "online ranking search document", "online brand search document", "online ramsey search document", "online based search document"
"online rand search document" » "online brand search document", "online band search document", "online hand search document", "online range search document", "online trend search document", "online paid search document"
"online rand search or random search document" » "online range search or random search document", "online trend search or random search document", "online paid search or random search document"

Try widening your search to All Fields.

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• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("online rand search document") OR ("online ranked search document"))) OR ("online rand research arguments"))) OR ("online ((rand search) or (random search)) document")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"online rand search document\") OR (\"online ranked search document\"))) or (\"online rand research arguments\"))) or (\"online ((rand search) or (random search)) document\"))".
• Removing quotes may allow a broader search: (((((( online rand search document ) OR ( online ranked search document ))) or ( online rand research arguments ))) or ( online ((rand search) or (random search)) document )).
• Adding a wildcard symbol may retrieve word variants: (((((("online rand search document") OR ("online ranked search document"))) or ("online rand research arguments"))) or ("online ((rand search) or (random search)) document"))*.