Perhaps you should try some spelling variations:
"online rand research arguments" » "online rand research catchments", "online rand research elements", "online rand research agent", "online brand research arguments", "online range research arguments", "online card research arguments", "online band research arguments", "online hand research arguments"
"online sand research comments" » "online sand research commons", "online sand research contents", "online sand research commentary", "online sands research comments", "online island research comments", "online sound research comments", "online sind research comments", "online sale research comments", "online sao research comments"
"online gland research students" » "online gland research studies", "online gland research instruments", "online gland research study", "online grand research students", "online england research students", "online island research students", "online glands research students", "online glan research students", "online glane research students", "online gelang research students", "online brand research students", "online band research students"
"online land research students" » "online land research studies", "online land research instruments", "online land research study", "online lands research students", "online lan research students", "online lane research students", "online band research students", "online hand research students", "online brand research students"

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