Perhaps you should try some spelling variations:
"online rand research advancements" » "online rand research advances", "online rand recent advancements", "online rand research achievements", "online brand research advancements", "online range research advancements", "online card research advancements", "online band research advancements", "online hand research advancements"
"online random search document" » "engine random search document", "line random search document", "nonlinear random search document", "online brandom search document", "online bandom search document", "online handom search document"
"online rand search document" » "online brand search document", "online band search document", "online hand search document", "online ranked search document", "online range search document", "online trend 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 research advancements") OR ((("online rand search document") OR ("online random search document")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"online rand research advancements\") or (((\"online rand search document\") OR (\"online random search document\"))))".
• Removing quotes may allow a broader search: (( online rand research advancements ) or ((( online rand search document ) OR ( online random search document )))).
• Adding a wildcard symbol may retrieve word variants: (("online rand research advancements") or ((("online rand search document") OR ("online random search document"))))*.